JAMB Biology 1986 Question 41

Question 41

Plant Responses and Hormones

An instrument that can be used to demonstrate phototropism and geotropism in plants is the

  1. A.auxanometer
  2. B.potometer
  3. C.klinostat
  4. D.photometer.
Show the answer and explanation

Answer: C (klinostat)

Explanation

A klinostat slowly rotates a plant so that every side gets the same stimulus. Comparing it with a still plant shows the effect of light or gravity.