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A green plant bends towards the source o...

A green plant bends towards the source of light when exposed to the light as it grows. Which of the following is the best explanation of the phenomenon

A

The apices of their stems are attracted by light

B

They need light for photosynthesis

C

Some auxins accumulate on the shaded side to induce greater cell elongation on that side

D

Light stimulates the cells on the illuminated side to increase in length

Text Solution

Verified by Experts

The correct Answer is:
C
Auxin move laterally away from light. It is the greater concentration of auxin on the shaded side that stimulates cell elongation thereby causing curvature.
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