plz give me the answers of ch 2 class 6 lakhmir singh
Answers
Answer:
Explanation:1. Name the major nutrients in our food.
Ans: The major nutrients in our food are carbohydrates, proteins, fats, vitamins and minerals.
2. Name the following:
(a) The nutrients which mainly give energy to our body.
(b) The nutrients that are needed for the growth and maintenance of our body.
(c) A vitamin required for maintaining good eyesight.
(d) A mineral that is required for keeping our bones healthy.
Ans:
(a) Carbohydrates
(b) Proteins
(c) Vitamin A
(d) Calcium
3. Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein
Ans:
(a) Ghee, butter,
(b) Raw potato, rice,
(c) Spinach, cabbage, carrot, ladies finger, (any two)
(d) Milk, egg, fish, meat, pulses (any two).
4. Tick (/) the statements that are correct, cross (X) those which dire incorrect.
(a) By eating rice alone, we can fulfill nutritional requirement of our body,
(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.
NCERT Solutions for Class 6 Science Chapter 2 Components of Food Q4
5. Fill in the blanks:
(a) ________ is caused by deficiency of Vitamin D. ,
(b) Deficiency of_________ causes a disease known as beri-beri.
(c) Deficiency of Vitamin C causes a disease known as________________ .
(d) Night blindness is caused due to deficiency of_______________ in our food.
Ans:
(a) Rickets
(b) Vitamin B1
(c) Scurvy
(d) Vitamin A
Vitamin K.
18. Name a vitamin which represents a group of vitamins.
Ans: Vitamin B-complex.
19. Name two sources of Vitamin A.
Ans:
(i) Fish-oil
(ii) Milk
20. Write two sources of Vitamin B.
Ans:
(i) Liver
(ii) Beans
21. Write two sources of Vitamin C.
Ans:
(i) Orange/lime
(ii) Amla
22. Write two sources of Vitamin D.
Ans:
(i) Fish
(ii) Butter
23. What is roughage?
Ans. The food containing plant fibres which sure also known as dietary fibres is called roughage.
24. What is the main Function of roughage?
Ans: The main function of roughage is to help our body get rid of undigested food.
25. Name some food items which provide roughage.
Ans: Whole grains, fresh fruits and vegetables are the main sources of roughage.
Class 6 Science Chapter 2 SHORT ANSWER TYPE QUESTIONS
3. Write test for detecting the presence of starch.
Ans: Take a piece of the food item. Put 2-3 drops of dilute iodine solution on it. If the colour of the food item becomes blue-black, then it indicates the presence of starch in the food item.
(i) Food + Iodine — Blue-black colour (starch present)
(ii) Food + Iodine — No blue-black colo. What are the functions of proteins?
Ans: Proteins are the most important nutrient. They are called body-building food. They help in the growth and repair of damaged cells and tissues of the body. They also help our body to fight against infections. Proteins make our nails, hair and muscles.