A-LevelBiologyTransport in plants9700/12 · Oct/Nov 2009 · Q291 Mark

When stained, which features, visible under the light microscope, are part of the cells of the plant tissues listed in the table?

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Axylem elements: cytoplasm, sieve tube elements: lignin, companion cells: nuclei

Bxylem elements: lignin, sieve tube elements: cytoplasm, companion cells: nuclei

Cxylem elements: lignin, sieve tube elements: nuclei, companion cells: cytoplasm

Dxylem elements: nuclei, sieve tube elements: cytoplasm, companion cells: lignin

✓ Correct answer

B: xylem elements: lignin, sieve tube elements: cytoplasm, companion cells: nuclei

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Topic: Transport in plants, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2009 Paper 1 Variant 2, question 29.

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