Multiple Choice
According to modern ideas about phototropism in plants,
A) light causes auxin to accumulate on the shaded side of a plant stem.
B) auxin stimulates elongation of plant stem cells.
C) auxin is produced by the tip of the coleoptile and moves downward.
D) A and B only
E) A, B and C
Correct Answer:
Verified
Correct Answer:
Verified
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Q27: Which one of the following is not
Q28: Cells elongate in response to auxin. All
Q29: External stimuli would be received most quickly
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Q34: Charles and Francis Darwin discovered that<br>A)auxin is
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Q55: Why do coleoptiles grow toward light?<br>A) Auxin