A houseplant is growing on your windowsill. Every Sunday, without fail, your roommate turns the plant 180 degrees. When you ask your roommate why she does that, her reply is simply, "I want straight plants." Does this method produce straight plants?
A. No. The statoliths in the plant cells do not
respond to turning; the plant will grow straight
whether or not your roommate turns the plant.
B. No. The auxins don't respond to turning,
only to light.
C. Yes. Rotating the plant will even out the
growth of the plant toward the light by
switching where the light hits the plant every
week.
D. Yes. Rotating the plant redistributes the
statoliths, so they remain in the bottom of
each cell.
C
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