Plant Growth And Development Question 159
Question: Abscisic acid treatment results in [CBSE PMT 1991]
Options:
A) Leaf expansion
B) Stem elongation
C) Stomatal closure
D) Root elongation
Show Answer
Answer:
Correct Answer: C
Solution:
ABA inhibits the H+/K+ exchange and promotes the leakage of malic acid.
The reduction of osmotically active solutes would render the guard cells flaccid and keep the stomatal pore closed.
BETA
