Biology 9700 · AS & A Level · Cells as the basic units of living organisms

Cells as the basic units of living organisms — practice question

Which of the following statements is correct?

  • AProkaryotes and chloroplasts have circular DNA where genes carrying the code for cell walls are located.
  • BProkaryotes and chloroplasts have $70 ext{S}$ ribosomes that are the sites for translation and polypeptide synthesis.
  • CProkaryotes and mitochondria have an outer membrane and a separate inner, folded membrane where ATP synthesis occurs.
  • DProkaryotes and mitochondria have double-stranded linear DNA where genes carrying coded information are located.

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