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What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]
- a)Level of phytochrome decreases
- b)Phytochrome is destroyed
- c)Phytochrome synthesis increases
- d)Destruction and synthesis of phytochrome remain in equilibrium.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
What will be the effect on phytochrome in a plant subjected to continu...
Continuous exposure to red light causes
- Conversion of Pr to Pfr which is rapidly destroyed.
- Inhibition of synthesis of Pr.
- Total amount of phytochrome decreases.
This question is part of UPSC exam. View all NEET courses
Most Upvoted Answer
What will be the effect on phytochrome in a plant subjected to continu...
Phytochrome is a photodetector pigment in the plant. It is sensitive to the red and far-red region of the visible spectrum. It regulates the flowering. At 670 nm of light, it changes to Pfr and at 730 nm of light it changes to Pr.
If, we subject a plant to continuous red light, the level of phytochrome in the plant decrease below a critical value and triggers the de novo synthesis of more phytochromes in the Pr form. The result is an equilibrium in the plant between the synthesis and the destruction of phytochrome.
If, we subject a plant to continuous red light, the level of phytochrome in the plant decrease below a critical value and triggers the de novo synthesis of more phytochromes in the Pr form. The result is an equilibrium in the plant between the synthesis and the destruction of phytochrome.
Community Answer
What will be the effect on phytochrome in a plant subjected to continu...
Effect of Continuous Red Light on Phytochrome in Plants:
Decrease in Phytochrome Level:
- Continuous exposure to red light leads to the conversion of phytochrome from its active Pfr form to the inactive Pr form.
- The constant presence of red light prevents the regeneration of active phytochrome, resulting in a decrease in the overall level of phytochrome in the plant.
Therefore, the correct answer is option 'a) Level of phytochrome decreases'.
Decrease in Phytochrome Level:
- Continuous exposure to red light leads to the conversion of phytochrome from its active Pfr form to the inactive Pr form.
- The constant presence of red light prevents the regeneration of active phytochrome, resulting in a decrease in the overall level of phytochrome in the plant.
Therefore, the correct answer is option 'a) Level of phytochrome decreases'.
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What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer?
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What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer?.
What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the effect on phytochrome in a plant subjected to continuous red light? [1997]a)Level of phytochrome decreasesb)Phytochrome is destroyedc)Phytochrome synthesis increasesd)Destruction and synthesis of phytochrome remain in equilibrium.Correct answer is option 'A'. Can you explain this answer?.
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