Absorption & Assimilation (Cambridge O Level Biology)

Fig. 1 is a photomicrograph showing a surface view of many villi in the small intestine.

Fig. 1

State the function of villi.

[1]

Describe the structure of a villus.

[3]

Blood transports nutrients.

State the component of the blood that transports nutrients.

[1]

The nutrients in the blood can be used to become part of cells.

State the name of this process.

[1]

Amino acids are used to make proteins.

State two examples of proteins that are found in the blood.

[2]

Explain the effect of cholera bacteria on the digestive system.