Organs and functions

Question 1

Salivary gland

Answer 1

Produces salivary amylase. This contains enzymes, which break down carbohydrates. This happens in the mouth.

Question 2

Oesophagus

Answer 2

This is where the food goes down. To help push food down, it has a function called peristalsis. This is when the muscles inside squeeze in waves so the food can go down.

Question 3

Liver

Answer 3

Produces bile (an alkali) which can neutralise stomach/hydrochlauric acid when it goes down into the small intestine. This is so the enzymes in the small intestine will not be denatured.

Question 4

Stomach

Answer 4

Mixes food with protease enzymes. Hydrochlauric acid is present. Also, it churns to make food more fluid. The muscle movement helps the food to be broken down.

Question 5

Pancreas

Answer 5

Produces enzymes to speed up the food being broken down. These include protease, lipase and carbohydrase.

Question 6

Gall bladder

Answer 6

Stores enzymes and bile.

Question 7

Small intestine

Answer 7

Produces enzymes to further break down food into even smaller molecules. The rest is waste.

Question 8

Large intestine

Answer 8

Absorbs water.

Question 9

Rectum

Answer 9

Stores feces.