Science

Components of Food

Question:

A patient had stunted growth, swelling on face, discolouration of hair and skin disease. Doctor advised him to eat a lot of pulses, grams, egg white, milk etc. What is wrong with the patient? Explain.

Answer:

The intake of protein is not enough in his diet and all these symptoms are caused due to deficiency of proteins.

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Components of Food

Q 1.

If any food item gives blue-black colour with iodine then which nutrient is present in the food?

Q 2.

Name two sources of proteins provided by animals.

Q 3.

List various types of nutrients and write the functions of each.

Q 4.

Name two plant food items which provide proteins.

Q 5.

Do all meals consist of the same food items?

Q 6.

What are vitamins? Write various kinds of vitamins.

Q 7.

Name a vitamin which represents a group of vitamins

Q 8.

Name a nutrient which helps in repairing the damaged body cells.

Q 9.

What are the functions of carbohydrates?

Q 10.

Name two nutrients which protect the body from diseases.

Q 11.

What is roughage?

Q 12.

Do all foods contain all the required nutrients?

Q 13.

Write two sources of Vitamin D.

Q 14.

Write two sources of Vitamin B.

Q 15.

What are the functions of minerals?

Q 16.

Write the functions of water in our body.

Q 17.

Name various types of vitamins.

Q 18.

Name the vitamin that our body prepares in the presence of sunlight.

Q 19.

Name a vitamin that is not present in milk.

Q 20.

Name two main types of carbohydrates found in our food.

Q 21.

What is the main Function of roughage?

Q 22.

What are deficiency diseases?

Q 23.

Why should a meal have different food items?

Q 24.

What is roughage?

Q 25.

Name two food items which provide fats.

Q 26.

Name two energy-providing nutrients.

Q 27.

Name the major nutrients in our food.

Q 28.

What happens when two or more drops of iodine solution fall on starch substance?

Q 29.

Name two sources of Vitamin A.

Q 30.

Write two sources of Vitamin C.

Q 31.

What are nutrients? Name major nutrients.

Q 32.

What are carbohydrates?

Q 33.

Write test for detecting, presence of fat.

Q 34.

A small child became very thin and lean and later he became so weak that he could not move. Which nutrients should he eat so as to improve his health?

Q 35.

Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein

Q 36.

Which type of food is called body-building food?

Q 37.

Name two substances which provide carbohydrates.

Q 38.

What is a balanced diet? Write the components of balanced diet.

Q 39.

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.

Q 40.

A patient had stunted growth, swelling on face, discolouration of hair and skin disease. Doctor advised him to eat a lot of pulses, grams, egg white, milk etc. What is wrong with the patient? Explain.

Q 41.

What is obesity?

Q 42.

What are the functions of proteins?

Q 43.

Prepare a chart to show various vitamins and minerals and the disorders caused by their deficiency.

Q 44.

What are fats? Name some fat-containing substances.

Q 45.

Excess intake of fats is harmful for the body because it causes obesity. Would it be harmful for the body to take too much of proteins or vitamins in the diet?

Q 46.

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.

Q 47.

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.

Q 48.

How can you test presence of proteins in a given food item?

Q 49.

Write test for detecting the presence of starch.

Q 50.

Name some food items which provide roughage.