Botany-Growth Regulators
NEET Botany Growth Regulators MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following statements about plant growth regulators (PGRs) is correct?
A
PGRs include substances like gibberellic acid and kinetin that regulate growth and development.
B
PGRs are only involved in the vegetative phase of plant development.
C
PGRs are exclusively large complex molecules that play a minor role in plant physiology.
D
PGRs are only produced in response to external environmental factors.
Correct Answer
Option A
Detailed Explanation
Plant growth regulators (PGRs) are indeed small, simple molecules of diverse chemical composition that regulate various growth and developmental processes in plants, including substances like gibberellic acid and kinetin as mentioned in the context.
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