NCERT Solutions for Class 6 Science Chapter 2 - Components of Food

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Chapter 2 - Components of Food Exercise 17

Solution 1

The major nutrients in our food are:
a. Carbohydrates
b. Proteins
c. Fats
d. Vitamins
e. Minerals

Concept insight: Students should know different types of nutrients.

Solution 2
(a) Carbohydrates and fats.
Concept insight: These release large amount of energy when broken down in the presence of oxygen.
(b) Proteins and minerals
Concept insight: Proteins and minerals are needed for the growth, repair and proper functioning of the body.
(c) Vitamin A
Concept insight: Deficiency of vitamin A leads to night blindness.
(d) Calcium
Concept insight: Calcium is needed for making bones and teeth.
Solution 3

(a) Groundnut and Butter
(b) Rice and Mango
(c) Fruits and vegetables
(d) Fish and Gram

Concept insight: Important from Exam Point of View

Solution 4

(a) By eating rice alone, we can fulfill the nutritional requirement in our body.
Concept insight: Though rice are a good source of carbohydrates but for proper growth of body all nutrients are required.

(b) Deficiency diseases can be prevented by eating a balanced diet.
Concept insight: A balanced diet consists of all the nutrients in correct amount as needed by body.

(c) A balanced diet for the body should contain a variety of food items.
Concept insight: A balanced diet should include nutrients in balanced amount.

(d) Meat alone is sufficient to provide all nutrients to the body.
Concept insight: No meat is a good source of animal protein but it does not contain all the nutrients.

Solution 5

(a) Rickets
(b) Vitamin B1
(c) Scurvy.
(d) Vitamin A

Concept insight: Students should know about deficiency diseases.