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NEET2001BotanyPhotosynthesis in Higher PlantsActual

Which of the following statements about phytochrome is true?

Options

  1. AP_r absorbs yellow light and becomes P_ f r .
  2. BP _ r absorbs red light and becomes P _ fr .
  3. CP _ fr absorbs red light and becomes P _ r .
  4. DP_ fr absorbs yellow light and becomes P_r .

Correct answer

B. P _ r absorbs red light and becomes P _ fr .

Step-by-step solution

Phytochrome is an amorphous photoreceptor chromoprotein. It exists in two interconvertible forms i.e., P _ r and P _ fr .

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