Question
Describe three differences between a bacterial cell and an animal cell.
Mark scheme (3 marks): Any three from:
- Bacteria have no (true / membrane-bound) nucleus; animal cells do (1)
- Bacterial DNA is a single circular chromosome (+ plasmids); animal DNA is linear chromosomes (1)
- Bacteria have a (peptidoglycan / murein) cell wall; animal cells do not (1)
- Bacteria have 70S ribosomes; animal cells have 80S ribosomes (1)
- Bacteria lack membrane-bound organelles e.g. mitochondria (1)
- Bacteria are typically smaller (1–10 µm) than animal cells (10–100 µm) (1) Max 3.
3 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.