Plant Growth and Development Question 60
60. Which of the following movement is not related to auxin level?
[1990]
(a) Bending of shoot towards light
(b) Movement of root towards soil
(c) Nyctinastic leaf movements
(d) Movement of sunflower head tracking the sun
Show Answer
Answer : c
Hints & Solutions
(c) All movements except nyctinastic movement are related to auxin. Nyctinastic (sleeping) movement of leaves is due to diurnal changes. (changes in day and night).
