AIIMS2001Botany-Plant Physiology
AIIMS 2001 Botany Phytochrome MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following statements about phytochrome is true?
A
P₀ absorbs yellow light and becomes Pₑ
B
P₀ absorbs red light and becomes Pᵣ
C
Pᵣ absorbs red light and becomes P₀
D
Pᵣ absorbs yellow light and becomes P₀
Correct Answer
Option B
Detailed Explanation
Phytochrome is a photoreceptor that absorbs red light and converts from the inactive form (Pᵣ) to the active form (P₀).
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