Term 2 Synoptic Exam - Digestion

Question 1

What happens in the mouth?

Answer 1

Digestion of food starts in the mouth. Teeth break down the food and mix it with the enzymes in saliva.

Question 2

What is the Oseophagus?

Answer 2

This is a thin tube that connects the mouth to the stomach.

Question 3

What does the liver do?

Answer 3

This releases a chemical called bile into the intestines. Bile breaks down lipids in the food.

Question 4

What is the stomach?

Answer 4

This is a muscular bag which mixes food and drink with acid.

Question 5

What does the pancreas do?

Answer 5

This releases enzymes into the intestines.

Question 6

What happens in the Small Intestine?

Answer 6

Here, carbohydrates, proteins and lipids get digested.

Question 7

What happens in the Large Intestine?

Answer 7

Water is absorbed into the blood.

Question 8

What happens in the Rectum?

Answer 8

Any undigested food passes into the rectum where it is stored as faeces.

Question 9

What is the Anus?

Answer 9

This is the opening at the very end of the digestive system through which faeces leaves the body.

Question 10

Name a part of the digestive system that food does not pass through.

Answer 10

Liver.

Question 11

Approximately how long is an adult digestive system?

Answer 11

9 metres long.

Question 12

What molecules break down food into nutrients?

Answer 12

Enzymes.

Question 13

What type of food is broken down chemically in the mouth?

Answer 13

Carbohydrate.

Question 14

Which part of the digestive system releases all three types of enzyme?

Answer 14

Small Intestine.

Question 15

What are the 3 Enzymes?

Answer 15

Amylase, Protease and Lipase.