Digestion

Question 1

What is the tube that connects the throat to the stomach?

Answer 1

The gullet or oesophagus.

Question 2

What does the stomach do?

Answer 2

It churns up and mixes it with gastric juices which contain acid and enzymes to break down food.

Question 3

What does the small intestine do?

Answer 3

It produces all 3 types of enzymes to break down food and it is where dissolved food enters the bloodstream.

Question 4

What does the large intestine do?

Answer 4

It receives unused food and removes excess water and salts. The remaining food is turned into faeces (poop).

Question 5

What is the liver used for?

Answer 5

1. neutralises stomach acid to help the enzymes in the small intestine.
2. produces bile which helps enzymes break down fat.

Question 6

What are the 3 enzymes, what do they break down, and what are the broken down products?

Answer 6

Protein - broken down by protease - -> amino acids
Fats - broken down by lipase- -> fatty acids and glycerol
Carbohydrates - broken down by carbohydrase/amylase - -> glucose

Question 7

Where does digestion start?

Answer 7

The mouth