A-LevelBiologyTransport in plants9700/12 · Feb/Mar 2023 · Q281 Mark

Cellulose, lignin and suberin are components of various plant cell walls. Descriptions of these cell wall components are listed. 1 a component of the Casparian strip 2 redirects water into the symplast pathway 3 a hydrophobic component of cell walls 4 water interacts with this molecule in the apoplast pathway Which row correctly matches three of the descriptions with cell wall components?

A2; 4; 1

B3; 4; 2

C4; 1; 2

D4; 3; 1

✓ Correct answer

D: 4; 3; 1

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Topic: Transport in plants, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Feb/Mar 2023 Paper 1 Variant 2, question 28.

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