Chapter 2: Components of Food

  Science

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Chapter 2: Components of Food

  Class: VI

  Exemplar Solutions

Multiple Choice Questions

Question 1

Which one of the following food item does not provide dietary fiber?

 

(a) Whole grains

(b) Whole pulses

(c) Fruits and vegetables

(d) Milk

Answer 1

(d)

Question 2

Which of the following sources of protein is different from others?

 

(a) Peas

(b) Gram

(c) Soyabeans

(d) Cottage cheese (paneer)

Answer 2

(d)

Question 3

Which of the following nutrients is not present in milk?

 

(a) Protein

(b) Vitamin C

(d) Calcium

(d) Vitamin D

 

Answer 3

(b)

Question 4

Read the food items given below:

 

(i) Wheat

(ii) Ghee

(iii) Iodized salt

(iv) Spinach (palak)

 

Which of the above food items are "energy giving foods"?

 

(a) (i) and (iv)  (b) (ii) and (iv)

(c) (i) and (ii)  (d) (iii) and (iv)

Answer 4

(c)

Question 5

Read the following statements about diseases.

 

(i) They are caused by germs.

(ii) They are caused due to lack of nutrients in our diet.

(iii) They can be passed on to another person through contact.

(iv) They can be prevented by taking a balanced diet.

 

Which pair of statements best describe a deficiency disease?

 

(a) (i) and (ii)  (b) (ii) and (iii)

(c) (ii) and (iv) (d) (i) and (iii)

Answer 5

(c)

Question 6

Given below are the steps to test the presence of proteins in a food item:

 

(i) Take a small quantity of the food item in a test tube, add 10 drops of water to it and shake it.

(ii) Make a paste or powder of food to be tested.

(iii) Add 10 drops of caustic soda solution to the test tube and shake well.

(iv) Add 2 drops of copper sulphate solution to it.

 

 

Which of the following is the correct sequence of the steps?

 

(a) i, ii, iv, iii  (b) ii, i, iv, iii

(c) ii, i, iii, iv  (d) iv, ii, i, iii

Answer 6

(b)

 

Very Short Answer Questions

Question 7

Unscramble the following words related to components of food and write them in the space provided.

 

(a) reinpot    __________

(b) menliars    __________

(c) tivanmi    __________

(d) bocatradhyer  __________

(e) nitesturn  __________

(f) tfa   __________

Answer 7

(a) protein  (b) minerals  (c) vitamins  (d) carbohydrate  (e) nutrients  (f) fat

 

Question 8

 

Which of the following food items does not provide any nutrient?

 

 

 

Answer 8

 

Water

 

Short Answer Questions

 

Question 9

 

Fill in the blanks from the list of words given below:

 

(carbohydrate, fat, protein, starch, sugar, Vitamin A, Vitamin C, roughage, balanced diet, obesity, goiter)

 

 

(a) Egg yolk is rich in ____________ and egg albumin is rich in __________.

(b) Deficiency diseases can be prevented by taking a ___________.

(c) Eating too much of fat rich foods may lead to a condition called ____________.

(d) The component of food that does not provide any nutrient to our body and yet is essential in our food is ___________.

(e) The vitamin that gets easily destroyed by heating during cooking is __________.

 

Answer 9

 

(a) fat, protein  (b) balanced diet  (c) obesity  (d) roughage  (e) Vitamin C

 

Question 10

 

Read the items of food listed below. Classify them into carbohydrate rich, protein rich and fat rich foods and fill them in the given table.

 

Moong dal, fish, mustard oil, sweet potato, milk, rice, egg, beans, butter, butter milk (chhachh), cottage cheese (paneer), peas, maize, white bread.

 

 

 

Answer 10

 

A- sweet potato, rice, maize, white bread.

B- moong dal, fish, milk, egg, beans, butter milk, cottage cheese, peas.

C- mustard oil, milk, egg, butter.

 

Question 11

 

Tasty food is not always nutritious and nutritious food may not always be tasty to eat. Comment with examples.

 

Answer 11

 

Potato chips are tasty but they are not very nutritious.

Boiled vegetables are very nutritious but they may not be tasty.

 

Question 12

 

While using iodine in the laboratory, some drops of iodine fell on Paheli’s socks and some fell on her teacher’s saree. The drops of iodine on the saree turned blue black while their color did not change on the socks. What can be the possible reason?

 

Answer 12

 

The saree of Paheli’s teacher might have been starched, and starch turns blue black with iodine solution. Paheli’s socks did not have starch on it thereby showing no change.

 

Question 13

 

Paheli and Boojho peeled some potatoes and cut them into small pieces. They washed and boiled them in water. They threw away the excess water and fried them in oil adding salt and spices. Although the potato dish tasted very good, its nutrient value was less. Suggest a method of cooking potatoes that will not lower the nutrients in them.

 

Answer 13

 

Wash, peel, cut and cook the potatoes. Cooking in a small amount of water and then frying in a small quantity of oil conserves the nutrients.

 

Question 14

 

Paheli avoids eating vegetables but likes to eat biscuits, noodles and white bread. She frequently complains of stomachache and constipation. What are the food items that she should include in her diet to get rid of the problem? Give reason for your answer.

 

Answer 14

 

Paheli must include whole grains, whole pulses, fresh fruits and vegetables in her diet as she seems to lack roughage.

 

Question 15

 

(a) List all those components of food that provide nutrients.

(b) Mention two components of food that do not provide nutrients.

 

Answer 15

 

(a) Components of food that provide nutrients are carbohydrates, proteins, fats, vitamins and minerals.

(b) Components of food that do not provide nutrients are water and roughage/dietary fibers.

 

Question 16

 

‘Minerals and vitamins are needed in very small quantities by our body as compared to other components, yet, they are an important part of a balanced diet.’ Explain the statement.

 

 

Answer 16

 

Vitamins and minerals are very important because they help in

 

(a) protecting our body against diseases.

(b) growth.

(c) maintaining good health.

 

Question 17

 

‘Water does not provide nutrients, yet it is an important component of food.’ Explain?

 

Answer 17

 

Water helps our body to absorb nutrients from food and also helps in removing wastes such as urine and sweat.

 

 

Long Answer Questions

 

Question 18

 

Boojho was having difficulty in seeing things in dim light. The doctor tested his eyesight and prescribed a particular vitamin supplement. He also advised him to include a few food items in his diet.

 

(a) Which deficiency disease is he suffering from?

(b) Which food component may be lacking in his diet?

(c) Suggest some food items that he should include in his diet. (any four)

 

Answer 18

 

(a) Night blindness

(b) Vitamin A

(c) Carrot, papaya, mango, milk and fish oil or any other (any four)

 

Question 19

 

Solve the cross-word puzzle given as Fig. 2.1 from the clues given below.

 

 

Fig.2.1

 

Across

 

1. Lack of nutrients in our diet over a long period causes these diseases (10)
2. Rice and potato are rich in this type of carbohydrate (6)
3. Deficiency disease in bones making it become soft and bent (7)
4. The diet that provides all the nutrients that our body needs, in right quantities, along with adequate amount of roughage and water (8, 4)
5. Deficiency disease with bleeding gums (6)
6. Disease caused due to deficiency of iodine (6)

 

Down

 

7. Starch and sugar in our food are rich in this type of energy giving nutrient (13)
8. The term given to the useful components of food (9)
9. The disease caused by deficiency of iron in diet (7)
10. Green leafy vegetables, liver and apples are rich in this mineral (4)
11. Deficiency disease caused due to lack of Vitamin B1 in the diet (8)

 

Answer 19

 

 

 

Question 20

 

Observe the items given in Fig. 2.2 carefully and answer the questions that follow.

 

 

Fig.2.2

 

(a) Food item rich in carbohydrates is __________ .

(b) Egg is a rich source of protein, the mineral __________ and vitamin __________.

(c) __________ is a rich source of fat.

(d) Milk provides __________, vitamin D and __________ (mineral)

(e) __________ (fruit) is a rich source of vitamin A.

(f) Spinach is a good source of the mineral __________ .

(g) Both eggs and __________ are rich in __________ .

 

Answer 20

 

(a) Chapatti

(b) Calcium; Vitamin D

(c) Butter

(d) Protein; Calcium

(e) Papaya

(f) Iron

(g) Peas; Proteins

 

Question 21

 

SNAKES AND LADDERS

 

Make a board-game just like ‘snakes and ladders’ with 10 × 10 grid boxes.

The mouth of the snake will represent the faulty food habit or faulty method of cooking. Its tail will represent the deficiency disease caused or loss of any nutrient in food. Similarly, the box at the base of a ladder will represent healthy food habit or healthy method of cooking. Its upper end will represent the beneficial effect of that habit. An example is given as Fig. 2.3. Complete the board and play with your friends.

 

 

Fig.2.3

 

Answer 21

 

A snakes and ladders board-game prepared by children.