Question

Assertion (A) : A hormone called abscisic acid inhibits growth in plants.
Reason (R) : The role of auxins is opposite to that of abscisic acid in plants.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

Remember: Auxins promote growth, abscisic acid inhibits it.

Answer 1

The Correct Option is A

Abscisic acid inhibits plant growth, promoting dormancy and leaf drop. Auxins, conversely, promote growth and cell elongation. Therefore, auxins and abscisic acid have opposing functions. The Assertion is accurate, and the Reason provides a valid explanation.