digestive system

Question 1

absorption

Answer 1

The movement of substances through tiny holes into the bloodstream

Water and nutrients are absorbed through tiny pores in the lining of the intestines.

Question 2

The digestive tract starts at the mouth and ends at the anus. TRUE OR FALSE

Answer 2

TRUE

Question 3

enzyme

Answer 3

A substance made by the body to speed up chemical digestion

Enzymes in saliva break down starch while enzymes in the small intestine break down sugars and fats.

Question 4

large intestine

Answer 4

A wide tube where water is absorbed and most good bacteria live

Good bacteria living in the large intestine help it break down fats and complex carbohydrates.

Question 5

liver

Answer 5

A large organ that produces bile to help digest fats

The liver has many important functions in the body. It helps with digestion by producing bile.

Question 6

peristalsis

Answer 6

Involuntary muscle contractions that push food through tubes

Peristalsis in the oesophagus and intestines moves food and liquid along the digestive tract.