37. Plant Sensation and Response
Phototropism
Multiple Choice
Multiple ChoiceYou are interested in determining what part of a plant senses the light, which leads to phototropism. A good first experiment would be to __________.
A
remove the apical meristem and apply auxin before beginning light treatments
B
shine light from one side only. Then measure the auxin diffusing down the stem on the light and the shaded sides
C
spray auxin on just one part of the plant at a time to determine which one stimulates flowering
D
try light treatments of different colors (first blue, then yellow, then green) to see which promotes flowering the fastest
E
cover one part (for instance, the tip or base) with an opaque barrier before beginning light treatments
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