A-LevelBiologyCell structure9700/12 · Oct/Nov 2013 · Q31 Mark

A piece of mammalian tissue was homogenised and centrifuged. The biochemical a subcellular fractions was investigated. Which diagram indicates the fraction with maximum synthesis of messenger RNA? [Figure 3.1]

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A[Diagram A: Bar chart showing activity levels for nuclei, mitochondria, lysosomes, ribosomes]

B[Diagram B: Bar chart showing activity levels for nuclei, mitochondria, lysosomes, ribosomes]

C[Diagram C: Bar chart showing activity levels for nuclei, mitochondria, lysosomes, ribosomes]

D[Diagram D: Bar chart showing activity levels for nuclei, mitochondria, lysosomes, ribosomes]

✓ Correct answer

B: [Diagram B: Bar chart showing activity levels for nuclei, mitochondria, lysosomes, ribosomes]

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Topic: Cell structure, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2013 Paper 1 Variant 2, question 3.

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