The photographs were taken using a transmission electron
microscope (TEM). They show the ultrastructure of some organelles.

2. (a) Name the circled organelle:
(b) Which kind of cell(s) would this organelle be found in?
(c) Describe the function of this organelle:
3. (a) Name the large, circular organelle:
(b) Which kind of cell(s) would this organelle be found in?
(c) Describe the function of this organelle:.
4. (a) Name the ribbon-like organelle in this photograph (arrowed):
(b) Which kind of cell(s) would this organelle be found in?
(c) Name the dark 'blobs' attached to the organelle:
5. (a) Name this large circular structure (arrowed):
(b) Which kind of cell(s) would this organelle be found in?
(c) Describe the function of this organelle: