10. Carefully study the
drawings in the figure below made from observations of electron micrographs.
a)
Cells are divided into two major groups
according to their structures. To which group do the above cells belong?
Bacterial cell is belonged to
prokaryotic cell while plant cell is belonged to eukaryotic cell.
b)
Name the structures indicated by the letters A,
B and C on the diagrams above.
A:
Mesosome
B:
Nucleoid
C:
Plasmodesma
c)
State one difference between the structures
labeled B and H.
B contains DNA that lies free in
the cytoplasm and is not associated with protein or RNA, but H is bounded by a
double membrane nuclear envelope and it contains DNA that is associated with
protein and RNA to form chromosome.
d)
State the main function of the following
structures:
D:
Contains chlorophyll to trap light energy for photosynthesis.
E:
Synthesis lipids and undergo detoxification.
F:
Synthesis protein.
G:
Site of aerobic respiration to synthesis ATP.
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