Class 10

SCERT AP Board 10th Class Social Solutions 6th Lesson The People Textbook Questions and Answers.

AP State Syllabus SSC 10th Class Social Studies Solutions 6th Lesson The People

10th Class Social Studies 6th Lesson The People Textbook Questions and Answers

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Question 1.
Identify the false statements and correct them :
a) Census data is collected every 10 years.
b) Sex ratio refers to the number of females in an adult population.
c) Age structure shows us the distribution of people according to their age.
d) Population density is higher in mountains as people like the climate there.
Answer:
a) The statement is correct.
b) Sex ratio refers to the number of females per 1000 males.
c) The statement is correct.
d) Population density is lower in mountains due to hilly, dissected and rocky nature of the terrain, moderate to low rainfall, shallow and less fertile soils.

Question 2.
Based on the following table answer the questions below.
(a) Identify roughly how many centuries it took for the world population to double for the first time.
Answer:
300 years.

(b) In earlier classes you had studied about colonisation. Look at the table and identify in which of the continents the population decreased by 1800.
Answer: Oceania.

(c) Which continent has been most populous for most period of time?
Answer:
Asia.

(d) Is there any continent that is projected to show a significant decrease in population in future?
Answer:
Europe.

Question 3.
List out the impacts on society if sex ratio is too low or too high.
Answer:

1. The unbalanced sex ratios should be reflected in various social settings, including the modern college campus.
2. This ratio impacts the distribution of wealth, alter who sits in boardrooms and at the executive levels of the corporation and what governments do overtime.
3. A high sex ratio can have many implications, including on crime.
4. When there is a shortage of women in the marriage market the women can “marry up”, inevitably leaving the least desirable men with a marriage prospectus.
5. Gender imbalance will lead to a reduction in birth rate.

(OR)

The variations of sex ratio shows serious impact on society.
If the sex ratio is high: (i.e., more women than men)

1. Increase in women literacy – Better family management.
2. Better financial management.
3. Increases rural economy.
4. Controls rural-urban migration.
5. Increase in self-employment through self-help groups.

If sex ratio is low: (i.e., less women than men)

1. Scarcity of women.
2. It leads to illegal trafficking of women Ex: From Southern States to UP, Bihar etc.
3. Unequal distribution of resources like health, nutrition, education etc.

Question 4.
Compare the Indian literacy rates with other countries:

What similarities and differences do you note?
Answer:

Similarities and differences:

1. Almost all Asian countries have similar literacy rate except one or two i.e., low.
   All the European countries have same literacy rate i.e., high.
2. The male literacy rate is high in all the countries except Brazil and Norway.
3. The difference between male and female literacy rate is too high in India and Nepal.
4. Only Norway has achieved 100% literacy rate.

Question 5.
Which areas of Andhra Pradesh have high density of population and what may be some of the
reasons behind it ?
Answer:
Some of the coastal districts especially in delta area and the districts around the capital city Amaravathi have high density of population.
The reasons behind it are :

1. The regions in and around the delta areas have fertile soils.
2. They have plenty of water facilities and favourable living conditions.
3. The region around the capital city are developing industrially, and in all sectors.

Question 6.
Distinguish between population growth and population change.

Population Growth	Population Change
1) Population growth is the difference between birth rate and death rate plus migration.	1) Population change is the number of people added to the total population in a year.
2) It is expressed in percentage.	2) It is expressed in the addition of number of people.
3) Growth rate was 2.14% per year as per census 1991. It has declined to 1.93% per year in 2001.	3) Population was 84.64 crore in 1991. It increased to 102.87 crore in 2001, and addition of 18.23 crore in a decade.

Question 7.
Compare the population pyramid of India with the data of three other countries given here.
(a) Which country’s population is likely to grow ?
(b) Which country’s population is likely to reduce ?
(c) Compare the gender balance: What can you tell about each country’s family and welfare policies?
Answer:
(a) India’s population is likely to grow.
(b) Sweden’s population is likely to reduce.
(c) Among the four countries Mexico has high sex ratio of 1041, Sweden follows with 1020 and Kenya with 1000, but India has a negative sex ratio – 940 females per 1000 males. As for family and welfare policies, they are well organized in Kenya.

Question 8.
Map work:
a. On a blank map of India showing state boundaries, plot the state-wise population density based on the 2011 census by taking five ranges.
Answer:

b. On a blank map of Andhra Pradesh showing district boundaries, plot the popula¬tion distribution using the dot method (one dot is equivalent to 10,000 population).
Answer:

Note: Students are advised to do the map work using the dot method. The number of dots is mentioned in the brackets.

10th Class Social Studies 6th Lesson The People InText Questions and Answers

10th Class Social Textbook Page No. 71

Question 1.
1. Talk to a few people in your neighborhood who have different occupations and incomes. Find out about their views on the ideal family size.
Answer:
I have opted for the following persons in our neighborhood.

Question 2.
Have you ever wondered how information about the people living in your locality or village, and the country as a whole is collected and recorded? Ask your teacher to explain their experiences of collecting census data.
Answer:
To collect census information, areas of the country are divided into enumeration districts. A census interviewer is assigned to each individual district. The interviewer is trained to fully understand each and every aspect of the census information needed. During the month before the census, the interviewer begins preliminary enumerations. The interviewer will visit each building in his or her assigned district and quickly and accurately complete the census questionnaires. Once the questionnaires have been completed, they are taken to a main census office to be checked and coded. The census information is then ready to be input into computers that can generate the required statistics.

Question 3.
What is the difference in collecting information using a census or a sample method? Discuss with few examples.
Answer:
Census and sampling both serve the purpose of providing data and information about a population.
Sample method: Under this technique, some representative units or informants are selected from the universe. These selected units are called samples. Based on the data collected from these samples, conclusions are drawn upon the whole universe.
It is to be noted that if the size of the sample is considerably large and the samples have been properly selected, various results obtained from the study of the sample units, also hold good for the entire universe.
Census method: Under this technique, each and every item or unit constituting the universe is selected for data collection.
In the Indian Census, which is conducted once in ten years, this technique is invariably followed.

10th Class Social Textbook Page No. 72 & 73

Question 4.
Conducting a Survey

• Each group of two to three students will collect data from 10 families of their locality. The survey form is given below.
• Each group will fill in the details and construct the tables indicated.
• Based on the tables presented by each group, the class will discuss the questions.

Answer:
Self Activity

Before the survey:

The class needs to discuss and arrive at a common meaning for all the terms used in the survey form. Otherwise, there will be confusion in the actual survey and we would not be able to com¬pare the result of one group with another. With the help of your teacher discuss the following:

1. How would a “household” be defined? Whom all would you include?
   Answer:
   A household consists of one or more people who live in the same dwelling and also share meals or living accommodation and may consist of a single-family or some other grouping of people. I would not include any others.
2. For “Education” what are the categories that you would use?
   Examples: child below six; studying in school/college, class….; should be in school but not enrolled; studied up to class ..; did not attend school.
   Answer:
   1. School education – 6 to 15 years of age
   2. College education – 15+ to 20 years of age
   3. University education – 20+ to 25 years of age
   4. Other education – 15+ to 25 years of age
3. What categories would you use for occupation?
   Examples: Homemaker, student, self-employed as …, unemployed, retired, non-employed, senior citizen.
   1. Home maker
   2. Student
   3. Employed
   4. Non-employed
   5. Retired
   6. Senior citizen etc.

After the Survey:

1. Each group would construct a table to show a number of people in the surveyed families:
   
   Answer:
   
2. What is the female/ male ratio for your group? Are the ratios very different among the groups? Discuss.
   
   Answer:
   
3. What is the percentage of dropouts & never enrolled children as a whole-for all groups? What are the reasons for this?
   Answer:
   The percentage of dropouts never enrolled children as a whole = 8%
   Reasons:
   1. Parents’ economical background,
   2. Their superstitions,
   3. Teaching styles and
   4. Subjects like English, Mathematics etc.
4. For those above 20 years, what is the average time they have spent at school? Find this for your group. Is this data useful?
   Answer:
   They spent 5\(\frac { 1 }{ 2 } \) hours per day at school.
   This data is useful for the assessment of their school education.
5. For all people in the age group 15-59
   
   How do you classify those who are “working” and those who are “dependent” in your sample?
   Answer:
   

10th Class Social Textbook Page No. 74

Question 5.
Observe the following.
(a) From the age pyramid given above, identify a rough estimate of the percentage of children in the population.
Answer:
It is 31%.
Male : 190, 075, 426;
Female : 172, 799, 553

(b) Based on your survey present the following items in a table: Population, Children, Working, Aged.
Answer:
Self Activity.

10th Class Social Textbook Page No. 76

Question 6.
Do girls get similar opportunities for further studies as boys?
Answer:
Yes, at present girls also get similar opportunities for further studies as boys.

Question 7.
Do married women have opportunities for travel and work outside the home?
Answer:
Yes, many of the married women have opportunities for travel and work outside the home.

Question 8.
Are women expected to maintain a separation from their natal family and not ask for security or property rights?
Answer:
Yes, women are expected to maintain a separation from their natal family. But they are expected to ask for security or property rights.

Question 9.
Is there a strong preference for boys in your region?
Answer:
Yes, there is a preference for boys in our region, but it is not strong.

10th Class Social Textbook Page No. 77

Question 10.
Find out if there are illiterate people in your village or town. What does your survey reveal?
Answer:
There are 10 to 15 illiterates in our village. They are all over 70 years.
Our survey reveals that they remained illiterate due to their family background and lack of knowledge.

Question 11.
Discuss: How does literacy impact development?
Answer:
Conclusion:
Low literacy rates reduce development in a country because people who are educated are more able to become doctors and lawyers and set up businesses.
e.g.: If a country has a lower literacy rate then it will have a negative impact on the country’s economy due to less people having well-paid jobs, reducing its overall development for that period of time.

Question 12.
How is an agriculture laborer different from a cultivator?
Answer:

1. Cultivators are farmers who form or supervise the land that they own or take on rent.
2. Agricultural laborers are those who work on another’s form for wages in cash or kind.
3. Cultivator invests some capital and Agricultural laborer does not invest any capital.
4. Cultivator bears the profit or loss but Agricultural laborer is not responsible for profit or loss.
5. Cultivator avails credit facilities but Agricultural laborer does not get any credit facility.

Question 13.
Compare the type of workers that you find in your survey with that of the Census?
Answer:
Total workers: 84
Cultivators – 4%
Agricultural laborers – 10%
Workers in household industries – 15%
Others – 71%
This shows development in economy.

10th Class Social Textbook Page No. 78

Question 14.
Observe the increment in the population of India and its growth 1901-2011.

1. In which year did the population decrease?
   Answer:
   In 1921.
2. From which year onwards is the population continuously increasing?
   Answer:
   1931
3. What could be the reasons for the speed with which increases took place after Indian independence?
   Answer:
   India has grown dramatically since achieving independence.
   Reasons:
   1. Contact with western nations, in particular Great Britain, brought with it western medicine.
   2. The infant mortality rate dropped.
   3. The life expectancy rose.
   4. As the largest democratic nation in the world, India has been unable to force population controls.
   5. High fertility rate due to early marriages.
   6. Some religious superstitions, etc.

10th Class Social Textbook Page No. 79

Question 15.
Here are two posters from other countries. Can you guess the message given in them? Have you seen similar posters in India? Discuss.
Answer:
Messages:

1. A small family is an ideal family (2 children).
2. It is difficult to maintain a big family i.e., with 6 or more children.

Conclusion:
Yes, I have seen similar posters in India also.
“We two, ours two”

10th Class Social Textbook Page No. 80

Question 16.
The Magnitude and Rate of India’s Population Growth (calculate the missing figures and write them down)

Answer:

10th Class Social Textbook Page No. 81

Question 17.
When the fertility rate is near 2, what does this imply? Discuss. (OR)
When the fertility rate is 2, what does it imply?
Answer:
It implies the change in the outlook of people.
Families decide the number of children they want to have based on many considerations such as the resources they own, their security in old age, etc.

Question 18.
Talk to some couples who are recently married but do not have children. How many children do they plan for? What are the reasons?
Answer:

1. Couple — I: Pavan and Nagalakshmi Planned for two children.
2. Couple — II: Bindu Madhavi and Ravi Kiran Planned for two children.
3. Couple — III: Syamala Gayathri and Sharma Planned for two children
4. Couple — IV: Achyuth and Sita Planned for one child.

Reasons:

1. Their economic status.
2. They want to provide best facilities to their children.
3. They want to provide best education, etc.

Question 19.
In your family trace the number of children for every woman in three generations. What changes do you observe ?
Answer:
I observe that family planning was planned in the second generation itself. So the growth rate is decreasing at present.

Question 20.
Use the survey you have done in groups and find out total number of women in the age group 45 and above and number of their children. What is the average number of children per woman in your sample?
Answer:
The average number of children per woman in our sample is only 2.

Question 21.
What are the factors that influenced the decisions about children for Umed Singh? Do you think his daughter is thinking in a similar manner?
Answer:
Umed Singh wanted to have more living children, unlike his father. He believed in the saying ‘Puthrudu lenide Punnama Narakam Tappadu.’ He has a regular income and assets to feed up his large family.
These are the factors that influenced the decisions about children for Umed Singh.
I think his daughter is also thinking in a similar manner. So she planned for 3 children.

10th Class Social Textbook Page No. 82

Question 22.
By which year was all the land in the village cultivated?
Answer:
By 1970 all the land in the Rampur village was cultivated.

Question 23.
How do you think landed people responded to increasing family’s size ?
Answer:
1) The landed people can feed their children well.
2) They can share the property up to the needs of their children.
So I think landed people responded to increasing family size.

Question 24.
What was the response of small farmers, like Govind, when families expanded? How far was tubewell irrigation useful?
Answer:
Small farmers like Govind should minimize their families. Otherwise, their lands will be divided into small holdings.
The tubewell irrigation is useful up to some extent. The over usage of underground water leads to disaster.

Question 25.
Look at the following map. Find out if there is any relationship between re¬lief features of India and population density. Identify major urban centers across the country. How do you ex¬plain the high population density in the cities?
Answer:
Yes, there is a relationship between the relief features of India and population density. The population density is high in the coastal plains and the Ganga Sutlej plain. And it is also high on the river banks also. It is less in mountain¬ous regions and in desert areas.

10th Class Social Textbook Page No. 83

Question 26.
Observe the following map.
Here are the data for the population density of Andhra Pradesh – 2011. On the above blank district map of AP plot them in ranges.
Compare a high-density district and a low-density district on the following.

1. Terrain and potential for agriculture development
2. History of agriculture in that region- use of land, water and other natural resources
3. Migration to or from that region and reasons for this

Answer:

1. Highest – Krishna
   Lowest – YSR Kadapa
2. 
3. 1) Migration to YSR Kadapa is almost NIL.
   2) Migration from YSR Kadapa is due to education and employment.
   3) Migration to and from Krishna district is mainly due to education and employment.

Project work

Look at the following two maps of density and the graphs on growth of population. Use various aspects of the population you studied in this chapter and describe them.

Answer:

1. The population density is high in India when compared to Bangladesh.
2. The population distribution is more or less equal in all the regions in India. But in Algeria population is concentrated along the Mediterranean Sea coastline as the country is over 80% desert.
3. As the forests decrease population increases.

 

AP State Board Syllabus AP SSC 10th Class Biology Solutions Chapter 1 Nutrition – Food Supplying System Textbook Questions and Answers.

AP State Syllabus SSC 10th Class Biology Solutions 1st Lesson Nutrition – Food Supplying System

10th Class Biology 1st Lesson Nutrition – Food Supplying System Textbook Questions and Answers

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Question 1.
Write differences between
(a) Autotrophic nutrition – Heterotrophic nutrition:
Answer:

Autotrophic nutrition	Heterotrophic nutrition
1. Organism makes its own food.	1. Organism can not makes its own food.
2. Food is prepared from C02, water and sunlight.	2) Food is prepared from other organism.
3. Chlorophyll is required.	3. Chlorophyll is not required.
4. It takes place during day time.	4. It takes place throughout the day.
5. Examples are all green plants and photosynthetic bacteria.	5. All animals, Fungi and some bacteria.

(b) Ingestion – Digestion :
Answer:

Ingestion	Digestion
1. Taking in of food into the body through mouth is called ingestion.	1. Breaking up of complex molecules of food into simple and small molecules is called digestion.
2. Ingestion does not change the chemical and mechanical structure of food.	2. Digestion changes the chemical and mechanical structure of food.

(c) Light reaction – Dark reaction :
(OR)
Differentiate the reactions that take place in presence of light and the reactions which do not require light in photosynthesis.
Answer:

Light reaction	Dark reaction
1. It occurs in the grana of the chloroplast.	1. It occurs in the stroma of the chloroplast.
2. It occurs only in the presence of light.	2. It occurs in the presence or absence of light.
3. It occurs in the grana of the chloroplast.	3. It occurs in the stroma of the chloroplast.
4. Light reaction absorbs oxygen and light energy.	4. Dark reaction absorbs only CO2
5. End products are O2, ATP and NADPH.	5. End product is Glucose.
6. Photolysis of water occurs.	6. Carbon fixation occurs.
7. First stage of photosynthesis.	7. Second stage o: photosynthesis.

(d) Chlorophyll – Chloroplast:
Answer:

Chlorophyll	Chloroplast
1. Chlorophyll is the green coloured pigment present in the chloroplast.	1. It is the green coloured plastid enclosed by membranes.
2. It contains one atom of magnesium.	2. It consists of 3 membranes.
3. It harvests solar energy and convert into chemical energy.	3. It is responsible for enzymatic reactions leading to the synthesis of glucose.

Question 2.
Give reasons.
a) Why photosynthesis is considered as the basic energy source for most of living world?
(OR)
Why can we say that photosynthesis is the basic energy source for the living world?
Answer:

1. All living organisms constantly need energy to be alive.
2. They get energy from the food they eat.
3. The food directly or indirectly comes from the green plants through photosynthesis.
4. Hence photosynthesis can be considered as the basic energy source for most of living world.

b) Why is it better to call the dark phase of photosynthesis as a light independent phase?
Answer:

1. The term dark reaction or light independent does not mean that they occur when it is dark at night.
2. It only means that the reactions are not depend on light.
3. Hence we call the dark phase of photosynthesis as a light independent phase.

c) Why is it necessary to destarch a plant before performing any experiment on photosynthesis?
Answer:
1) To get better results, it is necessary to destarch a plant before performing any experiment on photosynthesis.
2) Because if starch is present it may interfere with the result of the experiment.

d) Why is it not possible to demonstrate respiration in green plants kept in sunlight?
Answer:

1. We cannot demonstrate an experiment of respiration in green plants kept in sunlight.
2. Because if sunlight is present, the C02 produced in respiration will be used in photosynthesis.
3. So we must conduct an experiment on respiration in green plants in a dark room.

Question 3.
Give examples.
a) Digestive enzymes
Answer:
The digestive enzymes are:

1. Salivary Amylase (Ptyalin),
2. Pepsin,
3. Trypsin,
4. Lipase,
5. Peptidases,
6. Sucrase,
7. Amylase (Pancreatic juice)

b) Organisms having heterotrophic nutrition is seen in organisms like:
Answer:
Heterotrophic nutrition is seen in organisms like:

1. All animals and human beings.
2. Some protozoans Ex: Amoeba.
3. Some parasitic plants Ex: Cuscuta
4. Saprophytes Ex: Bread moulds, yeast, mushrooms, etc.

c) Vitamins
Answer:
Water soluble vitamins:
B complex (B₁) Thiamine, (B₂) Riboflavin, (B₃) Niacin, (B₆) Pyridoxine,
(B₁₂) Cyanocobalamine, Folic acid, Pantothenic acid, Biotin, (C) Ascorbic Acid.
Fat soluble: (A) Retinol, (D) Calciferol, (E) Tocoferol, (K) Phylloquinine.

d) Nutritional deficiency diseases
Answer:
Eg: Kwashiorkor, Marasmus etc.

Question 4.
Where do plants get each of the raw materials required for photosynthesis?
Answer:

Raw materials	Sources
External factors: 1. Carbondioxide	Atmosphere
2. Sunlight	Sun
Internal factors: 3. Water	Ground water
4. Chlorophyll and enzymes	Present in leaf.

Question 5.
Explain the necessary conditions for autotrophic nutrition and what are its by products.
Answer:
A. Necessary conditions:

1. Autotrophic nutrition takes place through the process of photosynthesis.
2. Carbon dioxide, water, chlorophyll pigment and sunlight are the necessary conditions required for autotrophic nutrition.
3. The rate of photosynthesis depends on availability of sunlight.

B. By products:

1. Photosynthesis is the main process for autotrophic nutrition.
2. Carbohydrates and oxygen are the by products of photosynthesis.

Question 6.
With the help of chemical equation explain the process of photosynthesis In detail with the help of a flow chart.
Answer:
Process of photosynthesis:

1. The chemical equation representing the process of photosynthesis is
   
2. Definition: Photosynthesis is a photochemical reaction during carbohydrates are formed using carbon dioxide and water in the chloroplasts of the green plants in the presence of sunlight.
3. CO₂ water, sunlight and chlorophyll are the requirements of photosynthesis.
4. Glucose, O and water are the end products of the reaction.
5. Photosynthesis have two phases.
   1) Light reaction 2) Dark reaction
6. Light reaction have three steps, i) Oxidation of chlorophyll ii) Photolysis iii) Formation of ATP, NADPH and O₂
7. In dark reaction CO₂ is utilized and finally glucose is formed which is converted and stored as starch.

FLOW CHART:

Question 7.
Name the three end products of photosynthesis.
Answer:
Glucose, oxygen and water are the three end products of photosynthesis.

Question 8.
What is the connecting substance between light reaction and dark reaction?
Answer:
The hydrogen of NADPH present in the stroma is the connecting substance between light reaction and dark reaction.

Question 9.
Most leaves have the upper surface is more green and shiny than the lower ones. Why?
(OR)
In most of leaves the upper surface will be more green and shiny than the lower surface. Why?
Answer:

1. The upper surface comprising of the palisade parenchyma.
2. The lower surface comprising of the spongy parenchyma.
3. Palisade parenchyma contains more number of chloroplasts than the spongy parenchyma.
4. Thus the upper surface is more green and shiny than the lower ones.

Question 10.
Explain the structure of chloroplast with a neatly labelled sketch.
(OR)
Explain the structure of a chloroplast with the help of a rough diagram.
Answer:

1. Chloroplast is a membranous structure consisting of 3 membranes.
2. The third layer forms stacked sac like structures called granum.
3. The intermediatery fluid filled colourless portion is called stroma.
4. It is responsible for enzymatic reaction leading to the synthesis of glucose in plants.
5. Substances found in chloroplast, capture sunlight are called photosynthetic pigments.
6. Chlorophyll pigment contain one atom of magnesium.
7. Two major kinds of chlorophylls are associated with thyakoid membranes.
8. Chlorophyll-a is blue-green in colour and chlorophyll-b is yellow-green colour.
9.  Around 250-400 pigments molecules are grouped as light harvesting complex units in granum.
10. Some of the events occur in chloroplast are :
    a) Conversion of light energy to chemical energy.
    b) Splitting of water molecule.
    c) Reduction of carbondioxide to carbohydrates.

Question 11.
What is the role of acid in stomach?
Answer:

1. The internal walls of stomach has number of gastric glands. They secret gastric juice.
2. It contains HCl and enzymes.
3. HCl kills the bacteria present in the food and protects us from their harmful effects.
4. And also denatures the proteins so that enzymes can act easily on them.

Question 12.
What is the function of digestive enzyme?
Answer:

1. The function of digestive enzyme is to increase the process of breaking up of complex molecules into simpler and absorb molecules.
2. This makes easy for the body to absorb food.

Question 13.
How is the small intestine designed to absorb digested food? Explain.
(OR)
How is food absorbed by villi in small intestine?
Answer:

1. Small intestine is the largest part in digestive system.
2. Absorption is its main function including last stage of digestion.
3. The inner surface of small intestine has millions of tiny finger-like projections called villi.
4. Due to the presence of villi, the absorbing surface area of small intestine increases.
5. And the large surface area of small intestine helps in the rapid absorption of digested food.
6. The digested food which is absorbed through the walls of the small intestine goes into our blood.
7. Long and folding structure increase the ability of small intestine.

Question 14.
How are fats digested in our bodies? Where does this process take place?
What is emulsification? How it helps in digestion of fats? (OR)
How are fats digested? Where do they get digested?
Answer:

1. Bile juice and lipase enzymes helps in fat digestion.
2. Bile juice is secreted by liver.
3. Fats are digested by converting them into small globules like forms by the help of the bile juice.
4. This process is called emulsification.
5. Lipase enzyme is secreted by pancreas.
6. It converts emulsified fats into fatty acids and glycerol.
7. 
8. This process takes place in duodenum and small intestine.

Question 15.
What is the role of saliva in the digestion of food ?
(OR)
How does saliva digest food ?
Answer:

1. Saliva is secreted by three pairs of salivary glands present in the mouth.
2. Human saliva contains an enzyme called amylase (ptyalin).
3. It converts starch into maltose (a sugar).
4. The food is mixed thoroughly with saliva and becomes wet and slippery.
5. Saliva helps in the smooth passage of food in the food pipe.

Question 16.
What will happen to protein digestion as the medium of intestine is gradually rendered alkaline ?
Answer:

1. The food coming from the stomach to intestine is acidic in nature.
2. Bile and pancreatic juices render the internal condition of the intestine gradually to a basic or alkaline one.
3. Protein digestion continues even if the medium of intestine is gradually changed to alkaline.
4. In the alkaline medium pancreatic enzyme trypsin can act on the food and digests the proteins.
   
5. The enzymes present in the intestinal juice like peptidases complete the digestion of proteins into amino acids.
   

Question 17.
What is the role of roughages in the alimentary tract?
Answer:

1. Roughages are the fibres of either carbohydrates or proteins.
2. Plenty of roughages in the diet avoid constipation.
3. Roughages help in the easy movement of faeces in the large intestine.
4. They help in the easy digestion of food and keep the alimentary canal clean and healthy.

Question 18.
What is malnutrition? Explain some nutrition deficiency diseases.
Answer:
Malnutrition: Eating of food that does not have one or more than one nutrients in required amount is known as malnutrition.
Malnutrition is of three types:

1. Calorie malnutrition,
2. Protein malnutrition,
3. Protein calorie malnutrition.

Nutrition deficiency diseases:

1. Kwashiorkor disease: This is due to protein deficiency in diet.
   Symptoms:
   i) Body parts becomes swollen due to accumulation of water in the intercellular spaces,
   ii) Very poor muscle development,
   iii) Swollen legs,
   iv) Fluffy face,
   v) difficult to eat,
   vi) diarrhoea,
   vii) Dry skin.
2. Marasmus: This is due to deficiency of both protein and calories. Generally this disease occurs when there is an immediate pregnancy or repeated child births.
   Symptoms:
   i) Lean and weak,
   ii) Swelling in joints of limbs,
   iii) Less developed muscles,
   iv) Dry skin,
   v) diarrhoea.

Question 19.
How do non-green plants such as fungi and bacteria obtain their nourishment?
Answer:

1. Bacteria and fungi are non-green plants. So they cannot prepare their own food materials.
2. They are saprophytes which feed on dead and decaying plant and animal bodies.
3. The fungi and bacteria breakdown the complex organic molecules present in dead and decaying matter by releasing chemical substances into simple substances out¬side the body.
4. These simpler substances are then absorbed by fungi and bacteria as their food.

Question 20.
If we keep on increasing CO₂ concentration in the air, what will be the rate of photosynthesis?
Answer:

1. If the CO₂ concentration in the air increases, the rate of photosynthesis also increases.
2. If the CO₂ concentration raises above 5% then the rate of photosynthesis reduces.
3. At certain CO₂ concentration the rate of photosynthesis is constant.
4. Here a rise in CO₂ levels has no affect on the rate of photosynthesis as the other factors such as light intensity become limited.

Question 21.
What happens to plant if the rate of respiration becomes more than the rate of photosynthesis ?
Answer:

1. Respiration is a catabolic (destructive) process and photosynthesis is an anabolic (constructive) process.
2. If the rate of respiration becomes more than the rate of photosynthesis, the amount of food oxidised will be more than the food produced.
3. This affects the growth and development of plants and may even results in the death of the plant.

Question 22.
Why do you think that carbohydrates are not digested in the stomach?
(OR)
Where are carbohydrates digested in alimentary canal?
Answer:

1. For the digestion of carbohydrates enzyme ptyalin or amylase are required.
2. The gastric juice produced by stomach do not contain the enzyme ptyalin or amylase, it contains only pepsin which digests proteins.
3. Hence carbohydrates are not digested in the stomach.
4. Carbohydrates are partially digested in the mouth and completely in small intestine.

Question 23.
What process do you follow in your laboratory to study the presence of starch in leaves?
(OR)
(Activity – 1)
How do you test the presence of starch in leaves ? (OR)
Mention the materials required and explain the experiment to prove the presence of starch in leaves. What inference do you draw from this experiment?
Answer:
Aim: To study the presence of starch in leaves.
Apparatus: Beaker, test tube, bunsen burner, tripod stand, asbestos gauze, ethanol, leaf, petridish, iodine solution.
Procedure:

1. Select a leaf of a potted plant with soft thin leaves.
2. Boil the leaf in methylated spirit over a water bath till it becomes pale white due to the removal of chlorophyll.
3. Observe the leaf.
   
4. Spread the leaf in a dish and add a few drops of tincture iodine / betadine solution on it. Again observe the leaf.

Observation: The presence of starch will be indicated by a blue-black colour in leaf. Result: The experiment proves that starch is present in leaves. It is formed by Photo-synthesis.
Precautions:

1. Do not boil the methylated spirit test tube directly on flame.
2. Boil the water bath with low flame.

Question 24.
How would you demonstrate that green plants release oxygen when exposed to light? (OR) (Lab Activity)
Write the experimental procedure to prove that oxygen is produced during photosynthesis in the presence of light. (OR)
What materials are required to prove that oxygen is produced during photosynthesis in the presence of light? What procedure we need to follow to perform the above experiment?
We have conducted experiment that prove the release of oxygen when photosynthesis happens?
i) What are the plants used for this experiment? Where do they grow?
ii) How did you conduct the above experiment? In which context large number of air bubbles released? Do you noticed?
Answer:
i) Hydrilla plants are used for this experiment they grow in water.
ii) Experiment to demonstrate the release of oxygen during photosynthesis.
Aim: To prove that oxygen is produced during photosynthesis by hydrilla funnel experiment.
Apparatus: Beaker with water, test tube, funnel, hydrilla twigs, glowing splinter.
Procedure:

1. Arrange the apparatus as shown in the figure.
2. Place some water plant hydrilla in a beaker containing pond water, and cover these by a short stemmed funnel.
3. Invert a test – tube full of water over the stem of the funnel.
4. Ensure that the level of water in the beaker is above the level of stem of the inverted funnel.
5. Place the apparatus in the sun for at least 2 or 3 hours.
6. After sometime it is observed that gas bubbles come from the hydrilla plant. These bubbles are collected at the end of the test tube pushing the water into the beaker.
7. After sufficient gas is collected test – tube is taken out of the beaker carefully by closing it with thumb.

Observation: Test the gas in the test – tube by inserting a glowing incense stick which would burst into flames. This shows the presence of oxygen.
Result: This shows that oxygen is produced during photosynthesis.
Precautions:

1. Funnel should be smaller than the beaker.
2. Necessary care is to be taken while removing the test tube from the stem of the funnel.

Question 25.
Collect information from your primary health centre of malnutrition child at various ages and make a table your own and display in the classroom.
Answer:

Question 26.
If there were no green plants, all life on the earth would come to an end ! Comment.
(OR)
The survival of organisms would become difficult, if there are no green plants on the earth. How do you support?
Answer:

1. Plants play the most important part in the cycle of nature.
2. Without plants there could be no life on earth.
3. Plants are the only organisms that can make their own food and all other living beings directly or indirectly depend on plants for their food.
4. Moreover plants release oxygen into the atmosphere through photosynthesis.
5. Oxygen is essential for the organisms to respire.
6. Hence without green plants, all life on the earth would come to an end.

Question 27.
Draw a neat labelled diagram of chloroplast found in leaf, and its role in photosynthesis.
Answer:
Role of Chloroplast in photosynthesis:

1. Chloroplasts trap solar energy.
2. They convert that solar energy into chemical energy.
3. They help in the formation of glucose.

Question 28.
Draw the label diagram of human digestive system. List out the parts where peristalsis takes place.
Answer:
Parts where peristalsis takes place: Oesophagus, stomach, small intestine and large intestine.

Question 29.
Raheem prepared a model showing the passage of the food through different parts of the alimentary canal. Observe this and label its parts.
Answer:

Question 30.
Observe the following diagram and write a note on light dependent, light independent reactions.
Answer:
Note on light dependent reactions:

1. Light dependent reactions are also called as photochemical phase.
2. The light dependent reaction takes place in chlorophyll containing thylakoids called grana of chloroplasts.
3. Several steps occur in the light dependent reaction.
4. Step – 1: The chlorophyll on exposure to light energy becomes activated by absorbing photons.
5. Step – II: The energy is used in splitting the water molecule into two component ions named hydrogen (H⁺), hydroxyl ion (OH^–). This reaction is known as photolysis.
6. Step – III: OH^– ions through a series of steps produce water (H₂O) and O₂.
7. The end products of light reaction are ATP, NADPH and O₂.

Note on dark reaction or light independent reaction:

1. In light independent phase the hydrogen of the NADPH is used to combine it with CO₂, by utilizing ATP energy and to produce glucose.
2. This synthesis occurs in a number of steps using certain special intermediate compounds (mainly RUBP – Ribulose hi phosphate) and enzymes. Finally glucose is converted to starch.
3. All these reactions occur in the stroma region of the chloroplast.

Question 31.
Almost all the living world depends on plants for food material. How do you appreciate the process of making food by the green plants?
(OR)
What facts about the green plants do you appreciate?
Answer:
Leaf is a wonderful machine to synthesize food:

1. The leaf is the important site of photosynthesis and is called as food factory of the plant.
2. This plant organ can be treated as a wonderful natural machine which converts solar energy into useful chemical energy.
3. With all his scientific knowledge and technical skills, man has not produced anything similar leaf for utilization of solar energy without polluting the atmosphere.
4. This machine provides food and supports the life by providing oxygen for all the organisms including man on this planet.
5. Nature has given us such a wonderful machine free !!

Question 32.
Even a hard solid food also becomes smooth slurry in the digestive system by the enzymes released at a particular time. This mechanism is an amazing fact. Prepare a cartoon on it.
Answer:

Question 33.
What are good food habits?
Answer:
The food habits I am going to follow after reading this chapter are:

1. I take balanced diet which contains proper amounts of carbohydrates, proteins, fats, vitamins and minerals.
2. I avoid taking food containing high proportion of fat.
3. I eat food as much required by my body. I do not over eat.
4. I will not eat rich meals over several days.
5. I eat simple balanced meals, eat it leisurely and thoroughly masticating the food.
6. I avoid doing violent exercise soon after eating food.
7. I empty the bowels regularly avoiding constipation.
8. I will see to have plenty of roughages in the diet.

(OR)
After reading the chapter nutrition, I would like to follow the following food habits.

1. Having simple, well balanced meals.
2. Eating them in a leisurely manner.
3. Thoroughly masticating the food.
4. Avoiding strenuous exercise soon after eating food.
5. Drinking plenty of water and having regular bowel movement.
6. Decreasing consumption of coffee or tea per day.
7. Taking leafy vegetables at least 3 times a week and taking of fruits and vegetables plenty.
8. Maintaining regular timings for daily food consumption.

Fill in the blanks.

1. The food synthesized by the plant is stored as ———–.
2. ———– are the sites of photosynthesis.
3. Pancreatic juice contains enzymes for carrying the process of digestion of ———– and ———–.
4. The finger-like projections which increases the surface area in small intestine are called ———–.
5. The gastric juice contains ———– acid.
6. ———– vitamin is synthesized by bacteria present in intestine.

Answer:

1. carbohydrates
2. Chloroplasts
3. proteins, fats
4. Villi
5. HCl
6. Cyanocobalamin

Choose the correct answer.

1. Which of the following plant take the food by parasitic nutrition? [ ]
   A) Yeast
   B) Mushrooms
   C) Cuscuta
   D) Leeches
   Answer: C & D
2. The rate of photosynthesis is not affected by [ ]
   A) Light intensity
   B) Humidity
   C) Temperature
   D) Carbon dioxide concentration
   Answer: B
3. A plant is kept in dark cupboard for about forty eight hours before conducting any experiment on photosynthesis in order to [ ]
   A) Remove chlorophyll from leaves
   B) Remove starch from leaves
   C) Ensure that no photosynthesis occurred
   D) Ensure that leaves are free from the starch
   Answer: B
4. The digestive juice without enzyme is [ ]
   A) Bile
   B) Gastric juice
   C) Pancreatic juice
   D) Saliva
   Answer: A
5. In single-celled animals, the food is taken by [ ]
   A) the entire body surface
   B) mouth
   C) teeth
   D) vacuoles
   Answer: A
6. Which part of the plant takes in carbon dioxide from the air for photosynthesis? [ ]
   A) Root hair
   B) Stomata
   C) Leaf veins
   D) Sepals
   Answer: B

10th Class Biology 1st Lesson Nutrition – Food Supplying System Activities

Activity – 1

How do you prove experimentally that carbon dioxide is necessary for photosynthesis by Mohl’s half leaf experiment?
(OR)
List out the materials required and the procedure to be followed to prove that ‘carbon dioxide’ is essential for photosynthesis.
(OR)
You know that the factors like CO₂, Light and Chlorophyll are essential for photosynthesis. Write any one of experiment related to the factors essential for photosynthesis.
Answer:
Aim:
To prove-that carbon dioxide is essential for photosynthesis by Mohl’s half leaf experiment.
Apparatus:
Wide mouthed transparent bottle, KOH solution, potted plant, vertically split cork, Iodine solution.
Procedure:
Arrange the apparatus as shown in the figure.

1. Take a healthy potted plant and keep it in the dark for nearly a week for the removal of starch from the leaves.
2. A wide mouthed transparent bottle is taken.
3. Put potassium hydroxide pellets or potassium hydroxide solution (KOH) in the bottle.
4. This KOH absorbs CO₂ present in the bottle.
5. Insert splitted cork in the mouth of the bottle.
6. Insert one of the leaves of destarched plant through a split cork into transparent bottle.
7. Arrange half of the leaf is inside bottle and the remaining half outside.
8. Leave the plant in the sunlight for 2-3 hours.
9. After a few hours, test this leaf and other leaf of this plant for starch.

Observation :

1. The part of the leaf outside the bottle turns blue-black because starch is formed in this part due to photosynthesis.
2. The part of the leaf inside the bottle does not turn blue-black because the carbon dioxide present inside the bottle is absorbed by potassium hydroxide solution.
3. All the other factors water, sunlight and chlorophyll are available but not CO₂. Hence starch is not formed in the leaf part which is inside the bottle.

Result: This experiment proves that CO₂ is necessary for photosynthesis. Precautions:

1. The part of the leaf kept inside the bottle should not touch potassium hydroxide solution.
2. The apparatus should be kept air tight by applying grease or vaseline.

Activity – 2

Sunlight is necessary to form starch in green leaves.
(OR)
Write the materials required and the procedure to prove that light is essential for Photosynthesis.
(OR)
Write the procedure, precautions and observations in the lab activity, “Sunlight is necessary for photosynthesis”.
Answer:
Aim:
To prove that light is necessary for photosynthesis to form starch.
Apparatus:
Potted plant, light screen, iodine solution.

1. Keep potted plant in dark for one week to remove starch.
2. Take one black paper and cut it with your own design.
3. Keep design paper properly on the both sides with the help of clips.
4. Ensure that light does not pass through the covered area with black paper.
5. Keep the arranged apparatus at sunlight available area.
6. After few hours of exposure to bright sunlight detach the leaf.
7. Boil the leaf in methylated spirit over water bath. It becomes pale white due to the removal of chlorophyll. Take the leaf from test tube and spread the leaf in a petridish.
8. Add few drops of Iodine on leaf. The parts of the leaf, which could get light through the cut out design, turns blue-black colour.
9. The parts of the leaf which could not get light are not turned into blue – black colour.
   

Observation:
It is observed that only the parts of the leaf, which could get light through the cut out design, turn blue black, showing the presence of starch.

Result:
This experiment proves that light is necessary to form starch in the process of photosynthesis.

Activity – 3

Demonstrate litmus paper test on salivary amylase in the mouth.
Answer:

1. Before taking food into the mouth, take a litmus indicator paper and touch it to the tongue.
2. We observe no colour change in litmus paper.
3. Perform the litmus test again after chewing the food and swallowing it.
4. The red litmus paper turns to blue colour.
5. The blue litmus paper do not turns to red colour.
6. This demonstrates that amylase converts complex carbohydrates to simple sugar.
7. Amylase is alkaline in nature. This turns litmus paper blue when touches glucose at the second time.
   

Activity – 4

Observe different digestive enzymes and their role in digesting food in a tabular form.
Answer:

10th Class Biology 1st Lesson Nutrition – Food Supplying System InText Questions and Answers

10th Class Biology Textbook Page No. 2

Question 1.
Can you think of some raw materials needed for photosynthesis?
Answer:
Yes. Photosynthesis needs the following raw materials.

1. Sunlight, CO₂ water are external factors.
2. Chlorophyll and enzymes are internal factors.

Question 2.
What could be the end products of the process of photosynthesis?
Answer:
Glucose, water and oxygen are the end products of photosynthesis.

10th Class Biology Textbook Page No. 4

Question 3.
Do you think solar energy transforms into chemical energy by the process of photosynthesis?
Answer:
Yes, solar energy transforms into chemical energy by the process of photosynthesis.

Question 4.
What are the materials that you think would be essential for the synthesis of carbohydrates in the process of photosynthesis?
Answer:
The materials essential for the synthesis of carbohydrates in the process of photosynthesis are carbon dioxide, water, sunlight and chlorophyll.

Question 5.
Do you think the equation tells us about all the materials involved?
Answer:
Yes, the materials which are essential for photosynthesis and the products formed are involved in the equation.

10th Class Biology Textbook Page No. 5

Question 6.
What had Priestly done to introduce the mint plant without disturbing the experimental setup?
Answer:
Priestly should have tilted the bell jar to one side and introduced the mint plant without disturbing the experimental set up.

Question 7.
How did Priestly light the candle from outside?
Answer:
Priestly might have used convex lens through which beam of sun rays can light the candle from outside or he might have used long burning stick, to light the candle by lifting the jar partially.

Question 8.
Do you find any relationship between candle, rat, mint plant? Discuss.
Answer:
Priestly’s experiment confirmed that gaseous exchange was going on and plants were giving out a gas that supported burning and was essential for the survival of animals.
By combustion process candle releases carbondioxide. By respiration process rat also releases carbondioxide. During photosynthesis process mint plant uses this carbondioxide and releases oxygen. This oxygen will be used by rat to stay alive and for the candle to burn.
So there is a relationship between respiration and photosynthesis by candle, rat and mint plant.

10th Class Biology Textbook Page No. 6

Question 9.
Why was the plant kept in dark and then in sunlight?
Answer:

1. The plant is kept in the dark for nearly a week to remove the starch from the leaves.
2. Then only we can understand that the starch is formed in the leaves or not after the experiment when the plant is kept in the sunlight.

Question 10.
Why did we study two leaves in the Mohl’s half leaf experiment?
Answer:

1. To test CO₂ is essential or not for photosynthesis, two leaves are used in the experiment.
2. One leaf with the plant and another one used in the experiment.
3. The leaf which is exposed to the atmospheric air becomes bluish-black. It proves that starch is prepared in the leaf by using CO₂ from atmosphere.
4. The leaf inside the flask containing potassium hydroxide, which absorbs CO₂ present in the bottle does not become bluish black. It shows that CO₂ is necessary for photosynthesis.

10th Class Biology Textbook Page No. 7

Question 11.
What precautions do you need while removing test tube from the beaker? Discuss with your teacher.
Answer:

1. When sufficient gas is collected lift the test tube carefully from the beaker by closing its mouth with the thumb.
2. Because of that the gas present in the test tube cannot escape into the atmosphere.

10th Class Biology Textbook Page No. 8

Question 12.
Which part of leaf turns blue black? What about the remaining part?
Answer:

1. The part of the leaf, which could get light through the cut design turns to blue black showing the presence of starch.
2. The remaining part of the leaf which did not get light, do not turn blue, indicating that starch is not prepared.

Question 13.
Observe the colour of the leaf stained with iodine. Can you tell why it is stained differently?
Answer:

1. Some parts of the leaf prepared starch.
2. Some parts of the leaf does not prepared starch.
3. So it is stained differently.

Question 14.
What about plants having coloured leaves?
Answer:
Plants having coloured leaves also carry out photosynthesis. The coloured leaves containing pigments pass on the energy of sunlight trapped by them to chlorophyll.

Question 15.
How is that new leaves which look dark red in colour in several plants turn green?
Answer:

1. The new leaves which look dark red in colour contain coloured chromoplasts.
2. As the leaf grows the chromoplasts turns to chloroplasts and the leaf appears green in colour.

Question 16.
Do plants having reddish or yellowish leaves also carry out photosynthesis?
Answer:

1. Yes. Plants having reddish or yellowish leaves also carry out photosynthesis.
2. The pigments present in reddish or yellowish leaves pass on the energy of sunlight trapped by them to chlorophyll.

Question 17.
What made plants carry out photosynthesis while even green coloured animals (like some birds) could not?
Answer:

1. Chlorophyll and other pigment molecules trap (harvest) solar energy, convert it into chemical energy in the thylakoid membranes of the chloroplast.
2. But animals having green colour on their body cannot trap solar energy and cannot perform photosynthesis. Photosynthesis is possible only in plants but not in animals.

10th Class Biology Textbook Page No. 9

Question 18.
Where is chlorophyll and other pigments present in the plant?
Answer:
Chlorophyll and other pigments are present in the grana thylakoids of chloroplast in leaf.

Question 19.
Do you think the new reddish leaves of plants also carry out photosynthesis? What could be the role of their colour?
Answer:

1. Yes. New reddish leaves of plants also carry out photosynthesis.
2. Chromoplasts are responsible for the reddish colour of leaves.
3. They also pass on the energy of sunlight which they trap to the photosystems.

10th Class Biology Textbook Page No. 10

Question 20.
What makes chloroplast appear completely different from other cell organelles?
Answer:

1. Substances found in chloroplast, which capture sunlight are called photosynthetic pigments.
2. Two major kinds of chlorophyll are associated with thylakoid membranes.
3. Chlorophyll – a (blue – green in colour) and chlorophyll – b (yellow – green); around 250 to 400 pigment molecules are grouped as light harvesting units in each granum.
4. Such innumerable units in chloroplasts make them appear completely different from other organelles.

10th Class Biology Textbook Page No. 13

Question 21.
What happens to the food once it enters our body?
Answer:

1. The food once enters our body it gets digested by various enzymes in different parts of alimentary canal.
2. Digestion starts in the mouth and it completes in the small intestine.
3. Finally it absorbed in the small intestine into the circulatory system.

10th Class Biology Textbook Page No. 15

Question 22.
Name the enzymes which act on carbohydrates.
Answer:
Ptyalin (salivary amylase), amylase and sucrose are the enzymes that act on carbohydrates.

10th Class Biology Textbook Page No. 16

Question 23.
What are the end products of fats?
Answer:
The end products of fats are fatty acids and glycerol.

Question 24.
What are the enzymes that act on proteins?
Answer:
Pepsin, Trypsin and Peptidases are the enzymes that act on proteins.

Question 25.
Which digestive juice contains no enzymes?
Answer:
Bile juice produced by liver contains no enzymes.

Question 26.
What do you think about the process of digestion?
Answer:

1. The process of digestion occurs in the alimentary canal or digestive system.
2. During the process of digestion large complex macro molecules present in the food are converted to simple and small molecules.
3. Digestion provides the food material properly absorbed by the body.

Question 27.
What are the major steps of digestion?
Answer:
The major steps of digestion are

1. Ingestion
2. Digestion
3. Absorption and
4. Defecation.

10th Class Biology Textbook Page No. 18

Question 28.
Collect information about pellagra and discuss with your teacher.
Answer:

1. Pellagra is a vitamin-deficient disease.
2. Niacin (Vitamin – B₃) is essential for the metabolism of carbohydrates, proteins and fats.
3. The resources for vitamin – B₃ are kidney, liver, meat, egg, fish, oil seeds and legumes.
4. Deficiency of niacin results in a disease called PELLAGRA.

Symptoms: Pellagra is described by 3 Ds – Diarrhoea, Dermatitis, Dementia.
A more comprehensive list of symptoms include

1. Sensitivity to sunlight
2. Aggression
3. Dermatitis
4. Alopecia (hair loss)
5. Edema (swelling)

Smooth, beefy red, glossitis, red skin lesions, insomnia (sleepless), weakness, mental confusion, nerve damage are the symptoms of this pellagra.

Prevention: By taking of yeast, meat, fish, milk, eggs, green vegetables, beans and cereal grains, we can prevent this disease.

Andhra Pradesh SCERT AP SSC 10th Class Maths Important Bits with Answers in English and Telugu Medium are part of AP SSC 10th Class Textbook Solutions.

Students can also read AP SSC 10th Class Maths Solutions for board exams.

AP SSC 10th Class Maths Important Bits with Answers in English and Telugu

10th Class Maths Bits in English Medium

• Chapter 1 Real Numbers Bits for 10th Class
• Chapter 2 Sets Bits for 10th Class
• Chapter 3 Polynomials Bits for 10th Class
• Chapter 4 Pair of Linear Equations in Two Variables Bits for 10th Class
• Chapter 5 Quadratic Equations Bits for 10th Class
• Chapter 6 Progressions Bits for 10th Class
• Chapter 7 Coordinate Geometry Bits for 10th Class
• Similar Triangles Bits for 10th Class
• Tangents and Secants to a Circle Bits for 10th Class
• Mensuration Bits for 10th Class
• Chapter 11 Trigonometry Bits for 10th Class
• Chapter 12 Applications of Trigonometry Bits for 10th Class
• Chapter 13 Probability Bits for 10th Class
• Chapter 14 Statistics Bits for 10th Class

10th Class Maths Bits in Telugu Medium

• 1st Lesson వాస్తవ సంఖ్యలు Bits
• 2nd Lesson సమితులు Bits
• 3rd Lesson బహుపదులు Bits
• 4th Lesson రెండు చరరాశులలో రేఖీయ సమీకరణాల జత Bits
• 5th Lesson వర్గ సమీకరణాలు Bits
• 6th Lesson శ్రేఢులు Bits
• 7th Lesson నిరూపక రేఖాగణితం Bits
• 8th Lesson సరూప త్రిభుజాలు Bits
• 9th Lesson వృత్తాలకు స్పర్శరేఖలు మరియు ఛేదనరేఖలు Bits
• 10th Lesson క్షేత్రమితి Bits
• 11th Lesson త్రికోణమితి Bits
• 12th Lesson త్రికోణమితి అనువర్తనాలు Bits
• 13th Lesson సంభావ్యత Bits
• 14th Lesson సాంఖ్యక శాస్త్రం Bits

AP State Syllabus Bits with Answers

Andhra Pradesh SCERT AP State Board Syllabus 10th Class Hindi Textbook Solutions and Study Material Pdf are part of AP SSC 10th Class Textbook Solutions.

AP State Syllabus 10th Class Hindi Study Material Guide Textbook Solutions Pdf Free Download

• Chapter 1 बरसते बदल (कविता)
• Chapter 2 ईदगाह (कहानी)
• यह रास्ता कहाँ जाता है? (पठन हेतु नाटक)
• Chapter 3 हम भारतवासी (कविता)
• ★ शांति की राह में (उपवाचक – निबंध)
• Chapter 4 कण-कण का अधिकारी (कविता)
• Chapter 5 लोकगीत (निबंध)
• उलझन (पठन हेतु कविताएँ)
• Chapter 6 अंतर्राष्ट्रीय स्तर पर हिंदी (पत्र)
• ★ दो कलाकार (उपवाचक – कहानी)
• Chapter 7 भक्ति पद (कविता)
• Chapter 8 स्वराज्य की नींव (एकांकी)
• माँ मुझे आने दे! (पठन हेतु कविता)
• Chapter 9 दक्षिणी गंगा गोदावरी (यात्रा-वृत्तांत)
• ★ अपने स्कूल को एक उपहार (उपवाचक – कहानी)
• Chapter 10 नीति दोहे (कविता)
• Chapter 11 जल ही जीवन है (कहानी)
• क्या आपको पता है? (पठन हेतु पी.पी.टी. निबंध)
• Chapter 12 धरती के सवाल अंतरिक्ष के जवाब (साक्षात्कार)
• ★ अनोखा उपाय (उपवाचक – अनूदित कहानी)
• पत्र लेखन
• निबंध लेखन
• शब्दकोश

 

Telangana & Andhra Pradesh SCERT AP State Board Syllabus 10th Class Physical Science Physics Important Questions and Answers, TS AP 10th Class Physics Chapter Wise Important Questions 2022 Pdf in English Medium and Telugu Medium are part of AP Board 10th Class Textbook Solutions.

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AP 10th Class Physics Chapter Wise Important Questions 2022-2023 | 10th Class Physical Science Important Questions Pdf

AP TS 10th Class Physics Chapter Wise Important Questions 2022 | Physics Important Questions Class 10

AP 10th Class Physics Important Questions and Answers

• Chapter 1 Heat Important Questions
• Chapter 3 Reflection of Light by Different Surfaces Important Questions
• Chapter 5 Refraction of Light at Plane Surfaces Important Questions
• Chapter 6 Refraction of Light at Curved Surfaces Important Questions
• Chapter 7 Human Eye and Colourful World Important Questions
• Chapter 11 Electric Current Important Questions
• Chapter 12 Electromagnetism Important Questions

AP 10th Class Physical Science Chapter Wise Important Questions

• Chapter 2 Chemical Reactions and Equations Important Questions
• Chapter 4 Acids, Bases and Salts Important Questions
• Chapter 8 Structure of Atom Important Questions
• Chapter 9 Classification of Elements- The Periodic Table Important Questions
• Chapter 10 Chemical Bonding Important Questions
• Chapter 13 Principles of Metallurgy Important Questions
• Chapter 14 Carbon and its Compounds Important Questions

Physics 10th Class Important Questions | AP 10th Physics Important Questions | 10th Class PS Important Questions

AP 10th Class Physics Important Questions 2022-2023

• 1st Lesson ఉష్ణం Important Questions
• 3rd Lesson సమతల ఉపరితలాల వద్ద కాంతి వక్రీభవనం Important Questions
• 4th Lesson వక్రతలాల వద్ద కాంతి వక్రీభవనం Important Questions
• 5th Lesson మానవుని కన్ను-రంగుల ప్రపంచం Important Questions
• 9th Lesson విద్యుత్ ప్రవాహం Important Questions
• 10th Lesson విద్యుదయస్కాంతత్వం Important Questions

10th Class PS Important Questions in Telugu Medium

• 2nd Lesson ఆమ్లాలు-క్షారాలు-లవణాలు Important Questions
• 6th Lesson పరమాణు నిర్మాణం Important Questions
• 7th Lesson మూలకాల వర్గీకరణ – ఆవర్తన పట్టిక Important Questions
• 8th Lesson రసాయన బంధం Important Questions
• 11th Lesson లోహ సంగ్రహణ శాస్త్రం Important Questions
• 12th Lesson కార్బన్ – దాని సమ్మేళనాలు Important Questions

Telangana & Andhra Pradesh SCERT AP State Board Syllabus SSC 10th Class Biology Study Material, 10th Class Biology Guide Pdf free download, TS AP 10th Class Biology Textbook Questions and Answers Solutions in English Medium and Telugu Medium are part of AP Board 10th Class Textbook Solutions.

Students can also go through AP Board 10th Class Biology Notes to understand and remember the concepts easily. Students can also read AP 10th Class Biology Important Questions and Answers for board exams.

AP State Syllabus 10th Class Biology Study Material Guide Textbook Solutions Pdf Free Download

10th Class Biology Textbook Questions and Answers | AP 10th Class Biology Textbook English Medium Pdf Download

AP 10th Class Biology Study Material Pdf Download English Medium

• Chapter 1 Nutrition – Food Supplying System
• Chapter 2 Respiration – The Energy Releasing System
• Chapter 3 Transportation – The Circulatory System
• Chapter 4 Excretion – The Wastage Disposing System
• Chapter 5 Coordination – The Linking System
• Chapter 6 Reproduction – The Generating System
• Chapter 7 Coordination in Life Processes
• Chapter 8 Heredity
• Chapter 9 Our Environment
• Chapter 10 Natural Resources

AP 10th Class Biology Study Material in Telugu Medium

TS AP 10th Class Biology Study Material Pdf | 10th Class Biology Guide Pdf Download | Biology 10th Class Study Material

• 1st Lesson పోషణ – ఆహార సరఫరా వ్యవస్థ
• 2nd Lesson శ్వాసక్రియ – శక్తి ఉత్పాదక వ్యవస్థ
• 3rd Lesson ప్రసరణ – పదార్థ రవాణా వ్యవస్థ
• 4th Lesson విసర్జన – వ్యర్థాల తొలగింపు వ్యవస్థ
• 5th Lesson నియంత్రణ – సమన్వయ వ్యవస్థ
• 6th Lesson ప్రత్యుత్పత్తి – పునరుత్పాదక వ్యవస్థ
• 7th Lesson జీవక్రియలలో సమన్వయం
• 8th Lesson అనువంశికత – తరతరాలలో వైవిధ్యాలు
• 9th Lesson మన పర్యావరణం – మన బాధ్యత
• 10th Lesson సహజ వనరులు

Andhra Pradesh SCERT AP State Board Syllabus 10th Class Telugu Important Questions and Answers are part of AP SSC 10th Class Textbook Solutions.

Students can also read AP SSC 10th Class Telugu Solutions for board exams.

AP State Board Syllabus 10th Class Telugu Important Questions and Answers

• Chapter 1 మాతృభావన Important Questions
• Chapter 2 అమరావతి Important Questions
• Chapter 3 జానపదుని జాబు Important Questions
• Chapter 4 వెన్నెల Important Questions
• Chapter 5 ధన్యుడు Important Questions
• Chapter 6 శతక మధురిమ Important Questions
• Chapter 7 మా ప్రయత్నం Important Questions
• Chapter 8 సముద్ర‌లంఘ‌నం Important Questions
• Chapter 9 మాణిక్యవీణ Important Questions
• Chapter 10 గోరంతదీపాలు Important Questions
• Chapter 11 భిక్ష Important Questions
• Chapter 12 చిత్రగ్రీవం Important Questions