Cell biology GCSE questions
Cover the answers and try these Cell biology checks first. The full quiz in the app includes hints.
How to use these
Write your answer, then check. If you miss one, open the Cell biology lesson before you retry.
Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
Which statement about prokaryotic cells is correct?
A typical animal cell is about 20 µm wide. A bacterium is about 2 µm. How many times longer is the animal cell?
Which structures are found in plant cells but not in animal cells?
What is the function of mitochondria?
Common mistakes
- Every cell has DNA. Bacteria lack a nucleus, not DNA. “Bacteria are eukaryotic because they are living” scores 0.
- The cell wall does not control what enters — that is the cell membrane. The wall is fully permeable.
- Osmosis is not water moving from concentrated to dilute. Water moves from a dilute solution (high water potential) to a more concentrated solution.
- 8 mm is not 8 µm. Mixing units is the standard dump.
Answers and working
Frequently asked questions
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