Plant Growth And Development Question 129
Question: What will be the effect on phytochrome in a plant subjected to continuous red light [CBSE PMT 1997]
Options:
A) Level of phytochrome will decrease
B) Phytochrome will be destroyed
C) Phytochrome synthesis will increase
D) None of these
Show Answer
Answer:
Correct Answer: D
Solution:
If phytochrome $ P_{660} $ is exposed to red-light, it changes to $ P_{730} $ and if $ P_{730} $ is exposed to far-red light, it changes quickly back to $ P_{660} $ because both are in interconvertible form.
BETA
