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JAMB Biology 1995 Question 20

Question 20

Plant Responses and Hormones

When a healthy shoot of a flowering plant is illuminated from one side, auxins, accumulate on the

  1. A.non-illuminated side of the shoot
  2. B.illuminated side of the shoot
  3. C.upper side of the shoot
  4. D.lower side of the shoot.
Show the answer and explanation

Answer: A (non-illuminated side of the shoot)

Explanation

Auxin moves to the shaded side, making those cells grow faster so the shoot bends towards the light.