Plant Growth and Development Question 60

[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).