Students can go through AP State Board 7th Class Science Notes Chapter 1 Food Components to understand and remember the concept easily.
AP State Board Syllabus 7th Class Science Notes Chapter 1 Food Components
→ We eat different types of food items.
→ Food supplies the energy we need to do many tasks in our day to day activities.
→ Our food consists of carbohydrates, proteins, fats, vitamins and minerals. Besides these water and fibres are also present.
→ We require different quantities of carbohydrates, proteins, and fats according to the age and needs of individuals.
→ There are some components of food that are necessary for our body called roughages or dietary fibres.
→ Water is also an essential component needed by our body.
→ Scientists have found out that a balanced diet need not necessarily be costly.
→ Lavoisier (1743- 1793) paved new ways for nutrition research.
→ Food contains some components like Carbohydrates, Proteins, Fats, Vitamins and Minerals.
→ Fibres are also a component of food that is present in different kinds of fruits and vegetables.
→ All food items contain all the components of food. The amount of each component varies from one type of food to another.
→ Roughages or Dietary fibres clean our food canal and prevent constipation.
→ We must drink enough water so that our body functions properly.
→ The food that contains all the nutrients like Carbohydrates, Proteins, Fats, Vitamins and Minerals in proper proportions is called Balanced Diet.
→ Everyone requires a Balanced Diet.
→ Carbohydrates: Compound made from plants containing carbon, hydrogen and oxygen
→ Fibres: A long fine continuous thread or filament
→ Balanced diet: A diet that contains adequate amounts of all the necessary nutrients required for healthy growth and activity.
→ ProteIns: Nutritious substances contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur and are composed of one or more chains of amino acids.
→ Fats: Organic compounds constituting the esters of glycerol and fatty acids and their associated organic groups.
→ ConstipatIon: Irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis
→ Vitamins: Organic substances essential in minute amounts for normal growth and activity of the body and obtained naturally from plant and animal foods.
→ Minerals: Natural inorganic substances like nitrogen, phosphorus, potassium etc.,
→ Food: Nutritious substance that living forms eats or drinks, or absorbs, in order to maintain life and growth
→ Roughages: A kind of carbohydrate that our body helps to digest
→ Pesticide: A chemical used for killing pests, especially insects and rodents
→ Cereals: A grass such as wheat, oats, or corn, the starchy grains of which are used as food.
→ Pulses: The edible seeds of certain pod-bearing plants, such as peas and beans.
→ Scurvy: A disease caused by deficiency of vitamin C, characterized by spongy and bleeding gums, bleeding under the skin, and extreme weakness.
→ Nutrition: The process by which a living organism prepares food and uses it for growth and for the replacement of tissues.
→ Salad: A dish of raw leafy green vegetables with pieces of other raw or cooked vegetables, fruit, cheese, or other ingredients and served with a dressing.
→ Junk food: ‘Food that tastes good but is high in calories having little nutritional value. Ex: chips, lays, etc.
→ Dry fruits like dates, plums, raisins, cashew nuts, pistachios, etc. also keep us healthy.
→ Jagadish Chandra Bose (1858 – 1937):
An Ardent Aficionado of Flora:
About eighty years ago u great Indian scientists astonished the World with a number of startling discoveries. By one of these, he paved the way for modern wireless telegraphy and radio broadcasting. By another, he proved that plants are living organisms. He was J. C Bose.