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

Cells as the basic units of living organisms — practice question

The diagram displays three circles, $1$, $3$ and $5$, together with the shared structures, $2$ and $4$. Which row correctly identifies the three circles and some of the structures that they share between them?

  • Acircle 1: chloroplasts; 2: circular DNA; circle 3: mitochondria; 4: $80\text{S}$ ribosomes; circle 5: prokaryotes
  • Bcircle 1: chloroplasts; 2: $80\text{S}$ ribosomes; circle 3: mitochondria; 4: circular DNA; circle 5: prokaryotes
  • Ccircle 1: prokaryotes; 2: circular DNA; circle 3: mitochondria; 4: circular DNA; circle 5: chloroplasts
  • Dcircle 1: prokaryotes; 2: $70\text{S}$ ribosomes; circle 3: chloroplasts; 4: $80\text{S}$ ribosomes; circle 5: mitochondria

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