Study Set: Questions on Digestion

(a)

Identify the structures labelled I, II and III in the micrograph above and give a role for
each one.

Structure

Role

(3)

(b)

(i)

Using the letter A, identify one location on the micrograph where transcription
takes place.

(1)

(ii)

Using the letter B, identify one location on the micrograph where chemiosmosis
occurs.

(1)

The large, black vesicles store products of the cells that are released into the capillaries of the
pancreas.

(c)

(i)

Suggest what product each cell is likely to be making.

..........................................................................................................................

(1)

(ii)

Explain how the products are transported from the site of production and released
from the islet cells.

..........................................................................................................................

(3)

(Total 9 marks)

Questions on Digestion