Sunday, 29 April 2012

Class 6 - Science - Ch2 - Components of Food - NCERT Solution

NCERT Solutions and Other Questions and Answers

Q1: Name the major nutrients in our food.

Answer: The major nutrients in our food are carbohydrates, proteins, fats, vitamins and minerals. In addition, food also contains dietary fibers(roughage) and water. 

Q2: Name the following:

(a) The nutrients which mainly give energy to our body. - Carbohydrates and Fats
(b) The nutrients that are needed for the growth and maintenance of our body. - Proteins & Minerals
(c) A vitamin required for maintaining good eyesight. - Vitamin A
(d) A mineral that is required for keeping our bones healthy. - Calcium

Q3: Name two foods each rich in:


(a) Fats: Butter, Ghee, Milk, Groundnut oil
(b) Starch: Sugar, Rice, Potatoes
(c) Dietary fibre: Whole grains, fresh fruits, vegetables
(d) Protein: Beans, milk, cheese, egg, meat

Q4: Tick (√) the statements that are correct.


(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( Χ )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. (Χ)

Q5: Fill in the blanks.


(a) _Rickets___ is caused by deficiency of Vitamin D.
(b) Deficiency of _Vitamin B1___ causes a disease known as beri-beri.
(c) Deficiency of Vitamin C causes a disease known as _Scurvy_.
(d) Night blindness is caused due to deficiency of _Vitamin A_ in our food.

Q6: Why roughage is important is in our food?
Answer:  Although roughage food has no nutritional value, it contributes in our diet. It performs following functions:
  1. It prevents conditions like constipation and helps in regulating digestion.
  2. It helps in regular movement of bowels.
  3. It helps the movement of food to pass down the alimentary canal.
  4. Helps body get rid of undigested food.

Study Notes and Q & A

Q7: What is food pyramid? 

The food pyramid helps us know how to eat right. It helps us stay healthy. There are six groups in food pyramid.
Food Pyramid

The five main food groups are:
  • Grains
  • Fruits
  • Vegetables
  • Proteins
  • Milk
We should eat from these food groups everyday.
The sixth group is fats and sweets. We should eat less from this group.


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