Question 11
HardOriginal questionBacteria are prokaryotes. What do their cells lack that the cells of plants and animals have?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
Prokaryotic cells have DNA, ribosomes and a cell membrane, but the DNA lies free in the cytoplasm.
They have no membrane-bound nucleus (and no membrane-bound organelles such as mitochondria).
Worth noting
Every cell has DNA; the difference is whether a membrane encloses it.
- Concept
- Prokaryotic and eukaryotic cells
- Typical timeTypical
- 90 s
- Your timeYours
- —
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