Q.1. Write the name of sources of protein and what are their functions in our body?
Ans. Sources of protein are beans, soybeans, gram etc. Proteins are needed for growth and repair of our body.
Sources of ProteinQ.2. Write two functions of Vitamins?
Ans. Two functions of vitamins are:
(a) Vitamins help in protecting our body against diseases.
(b) Vitamins help in keeping our eyes and gums healthy.
Q.3. What is the importance of water in our body?
Ans. Water helps our body to absorb nutrients from food. It also helps in throwing some wastes from body as urine and sweat.
Importance of Water in our Body
Q.4. Name the food sources rich in dietary fibres?
Ans. Food sources rich in dietary fibres are whole grains, pulses, potatoes, fruits, and vegetables. These are mainly provided by plant products in our food.
Q.5. Why proteins are called ‘building blocks’ of the body?
Ans. Proteins are called ‘building blocks’ of the body because they are needed for growth and repair of our body.
Q.6. Choose the correct option-
(a) Oil is rich in ______. (fats/protein)
(b) Lemon contains ______. (Vitamin C /Vitamin D)
(b) Vitamin C
Q.7. Why is roughage an essential component of our food?
Ans. Roughage is an essential component of our food and adds to its bulk as it helps our body to get rid of undigested food.
Q.8. What is balanced diet?
Ans. Diet that contains all the nutrients in right quantities and it also contain good amount of roughage and water is called balanced diet.
Balanced Diet for Healthy Living
Q.9. What are deficiency diseases?
Ans. Diseases that occur due to lack of nutrients over a long period of time are called deficiency diseases.
Q.10. Match the following-
|(1) A||(a) Sun|
|(2) B||(b) Lemon|
|(3) C||(c) Carrot|
|(4) D||(d) Liver|
|(1) A||(c) Carrot|
|(2) B||(d) Liver|
|(3) C||(b) Lemon|
|(4) D||(a) Sun|
Q.11. Why are minerals essential for our body?
Ans. Minerals are essential for proper growth of body and to maintain good health.
Q.12. Which disease is caused by deficiency of –
(a) Vitamin A
(b) Vitamin C
(c) Vitamin D
(a) Night blindness
Q.1. List various types of nutrients and write the functions of each.
Ans. The various types of nutrients are:
(i) Carbohydrates: They are mainly energy-providing nutrients.
(ii) Fats: They provide energy for the body. They give much more energy than carbohydrates if consumed in same amount.
(iii) Proteins: They are called body-building foods. Proteins help in the formation and repairing of body parts. Skin, hair, muscles, enzymes are made up of proteins.
(iv) Vitamins: Vitamins help in protecting our body against disease. They also protect eyes, bones, teeth and gums.
(v) Minerals: Minerals are essential for proper growth of body and to maintain good health.
Types of Nutrients