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2NA SCI - Digestive System Revision

Total questions: 13

Worksheet time: 9mins

Name
Class
Date
1.

(a)   is a nutrient that provides a direct source of energy

2.

Which of the following nutrients help to grow and repair cells?

a)

Carbohydrates

b)

Fats

c)

Proteins

d)

Fibre

3.

Which of the following nutrients' main function is to keep our body healthy? (more than one answer)

a)

Vitamins

b)

Fats

c)

Carbohydratges

d)

Minerals

4.

Which o the following nutrients help to prevent constipation?

a)

Carbohydrates

b)

Fibre

c)

Proteins

d)

Fats

5.

The enzyme that helps digest carbohydrates is (a)   .

6.

When protein is digested with the help of ______ .

______ is produced.

a)

protease

amino acids

b)

amino acids

protease

c)

lipase

glucose

d)

amylase

fatty acids

7.

When fat is digested, we obtain ____________. (more than one answer)

a)

fatty acids

b)

lipase

c)

glycerol

d)

glucose

8.

When iodine solution is added to starch, the mixture is ________.

a)

blue-black

b)

colourless

c)

white

d)

yellowish brown

9.

Physical digestion occurs in _______. (more than 1 answer)

a)

mouth

b)

oesophagus

c)

stomach

d)

small intestine

10.

Which of the nutrients are digested in small intestine?(more than one answer)

a)

carbohydrates

b)

fats

c)

proteins

d)

water

11.

Other than small intestine, protein is also digested in

a)

mouth

b)

stomach

c)

oesophagus

d)

large intestine

12.

Other than small intestine, carbohydrates are also digested in

a)

mouth

b)

stomach

c)

oesophagus

d)

large intestine

13.

What is the function of large intestine?

a)

absorb nutrients

b)

digest food

c)

absorb water and mineral salts

d)

store undigested food