CAPE Biology Unit 2 · 2013 · Paper 1 · Question Q17
In a study of water movement in plants, the cut end of a leafy shoot is placed in a dilute solution of a dye. After a few hours, deposits of the dye accumulate in the leaves. The rate of movement of the dye up the stem is NOT increased by
- (A)humidity
- (B)wind speed
- (C)temperature
- (D)darkness
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