Absorption & Assimilation (Cambridge (CIE) O Level Biology): Exam Questions

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

Fig. 1

(i) State the function of villi.

[1]

(ii) Describe the structure of a villus.

[3]

(i) Blood transports nutrients.

State the component of the blood that transports nutrients.

[1]

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

State the name of this process.

[1]

(iii) 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.