Cell structures

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Question 9
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Chlamydomonas is a genus of single-celled green algae found in freshwater habitats.

a.

Name two sub-cellular structures a Chlamydomonas cell has in common with a typical animal cell.

  1. ....................................................................................................

  2. ....................................................................................................

[2]
b.

Explain why a Chlamydomonas cell is not classified as an animal cell.

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

[1]
c.

A micrograph of a Chlamydomonas cell is captured using a light microscope.

The actual diameter of this Chlamydomonas cell is 6.8 μm6.8\ \mu\text{m}6.8 μm. In the printed micrograph, the diameter of the cell measures 58 mm58\text{ mm}58 mm.

(1 mm=1000 μm1\text{ mm} = 1000\ \mu\text{m}1 mm=1000 μm)

Calculate the magnification of the micrograph. Give your answer to 3 significant figures.

Magnification = ....................................................................

[2]
d.

Chlamydomonas cells can carry out photosynthesis. Which gas is produced during this process?

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

[1]

Cell structures Questions

  1. GCSE
  2. /Biology
  3. /Cell structures