
Is photonasty a growth-related movement?
Important Questions on Control and Coordination
The changes that are likely to happen in the plant in the following picture:
(A) A hormone abscisic acid is synthesised at the shoot tip.
(B) When light is coming from one side of the plant, auxin diffuses towards the shady side of the plant.
(C) Abscisic acid helps the cells to grow longer.
(D) Cells grow longer on the side of the shoot which is away from light.
Select the correct option.


Fill in the blank with the options provided in the bracket.
Plant shoot grows upward in response to _____ (water, touch, light).











Fill in the blank with the correct option provided in the bracket.
Tendrils wind around a support in response to _____(touch, pressure, chemical).



Fill in the blank with the correct option provided in the bracket.
Accumulation of _____ (abscisic acid/auxin/ethylene) in seeds makes them dormant.




