Question

. Abscisic acid causes
a stomatal closure
b) stem elongation
c) leaf expansion
d) root elongation​

Answer 1

Answer:

a) stomatal closure

It inhibits root elongation, stem elongation and seed germination. It brings out the stomatal closure when soil water is insufficient to keep up with transpiration. It binds to receptor present on the guard cells and hence closes stomata.

So, the correct answer is 'Stomatal closure'

Answer 2

Answer:

Root elongation and stem elongation