A-LevelBiologyCell structure9700/12 · May/June 2012 · Q21 Mark
A student was asked to draw a plan diagram of the plant tissue shown in the photomicrograph and to annotate two observable features. [Figure 2.1] What are the correct annotations?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Aepidermis darkly stained layer of cells, xylem hollow vessels
Bepidermis formed of single layer of cells, xylem strengthened by lignin
Cphloem small cells, xylem empty cells to transport water
Dvascular bundles arranged in a regular pattern, xylem large dead cells
✓ Correct answer
A: epidermis darkly stained layer of cells, xylem hollow vessels
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