Home
Class 12
BIOLOGY
Closure of stomata is brought about by...

Closure of stomata is brought about by

A

indole butyric acid

B

abscisic acid

C

kinetic

D

gibbercellic acid

Text Solution

Verified by Experts

The correct Answer is:
B
Abscisic acid promotes reversal of `H^(+) hArr K^(+)` pump and increasing availability of `H^(+)` inside the guard cell cytoplasm. Loss of `K^(+)` decreases osmotic concentration of guard cells as compared to adjucent epidermal cells. Due to the exosmosis the turgidity of guard cells decreases and it closes the pore of stoma.
Promotional Banner

Similar Questions

Explore conceptually related problems

Artificial breeding of cattle is brought about by

Artificial breeding of cattle is brought about by

Curing of tea leaves is brought about by the activity of

Curing of tea leaves is brought about by the activity of

Curing of tea leaves is brought about by the activity of

Decomposition of organic matter is brought about by

Nitrogen fixation in root nodules of Alnus is brought about by

Nitrogen fixation in root nodules of Alnus is brought about by

Leaf abscission is brought about by

Phosphate pollution is brought about by