Constituents of Food

Q.

Biuret solution turns ______ detecting the presence of proteins in food.

1. Red colour

2. Pink colour

3. Blue-black colour

4. Violet colour

Q.

Which of the following nutrients is needed for protecting our body against diseases?

1. Carbohydrates

2. Proteins

3. Fats

4. Vitamins

Q. Food should not be overcooked, because ___.

1. nutrients will be lost
2. colour will be lost
3. vegetables will become dry
4. vegetables will become tasteless

Q. The albumin (white part) of egg gives purple/violet colour with the solution of copper sulphate and sodium hydroxide. This shows that ___ is present in it.

1. protein
2. vitamin
3. carbohydrate
4. fat

Q.

Which of the following examples of food under P, Q and R is correct?

P : Supplies materials for building cells

Q : Supplies a lot of energy

R : Supplies high dietary fibre

1. P - Fish
   Q - Lettuce
   R - Palm oil
2. P - Butter
   Q - Lettuce
   R - Fish
3. P - Mutton
   Q - Butter
   R - Bean sprout
4. P - Butter
   Q - Mutton
   R - Palm oil

Q. Match the major nutrients in the given foods with their functions.

1. (i) - A, (ii) - B, (iii) - C, (iv) - D
2. (i) - B, (ii) - A, (iii) - C, (iv) - D
3. (i) - A, (ii) - B, (iii) - D, (iv) - C
4. (i) - A, (ii) - C, (iii) - B, (iv) - D

Q. Name two energy yielding nutrients

Q.

types of nutrition and components of food

Q. Into which classes are nutrients divided? Which of these provide energy to the body?

Q. Match the nutrients with its source.

1. Carbohydrates
2. Proteins
3. Fat
4. Vitamin

Q.

Deficiency of iodine causes scurvy.

1. True
2. False

Q. A friend of Bala thought of eating food rich in fats since fats are the energy banks of our body. So, he ate mainly the food shown in the picture given below. Bala advised him not to do that. What is the reason?

1. This will make him obese

2. It is a balanced diet

3. Bala does not like the food

4. The food is tasty

Q.

The major nutrients or macronutrients of our food are:

1. Carbohydrates

2. Proteins

3. Fats

4. All of the above

Q. Among the listed items, the highest amount of protein is present in ____.

1. rice
2. wheat
3. peas
4. carrots

Q. Which of the following symptoms might be shown by a person whose diet is deficient in vitamin A?

1. Swelling of face
2. Obesity
3. Poor vision
4. Bent bones