Human Nutrition

Where is lipase produced, and into which part of the intestine is it secreted?

• A

• B

• C

• D

What are the functions of the colon?

• A

• B

• C

• D

Where in the alimentary canal is most water absorbed?

• colon

• ileum

• oesophagus

• stomach

Large, insoluble molecules have to be digested before they can be ........................ ​

​

• absorbed.

• assimilated.

• egested.

• ingested.

The diagram shows some organs of the human body.

Which structure does not move its contents by peristalsis?

• A

• B

• C

• D

The diagram shows part of the human digestive system.

Which part secretes an acidic digestive juice containing a protease?

• A

• B

• C

• D

Only two of the following statements accurately describe what happens in the mouth.

1) Amylase breaks down large starch molecules into smaller maltose molecules.

2) Chewing increases the surface area of food for digestion.

3) Saliva emulsifies fats into smaller droplets.

4) Teeth break up large insoluble molecules into smaller soluble molecules.

Which statements are correct?

• 1 and 2

• 2 and 3

• 3 and 4

• 1 and 4