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Agriculture · Q995

Plant Pathology

Graduate and Post Graduate · Agriculture · question 995

Q995

Condition favouring cyclic photophosphorylation is

A.
Anaerobic environment
B.
Aerobic and low light intensity
Answer
C.
Aerobic and optimum light
D.
Anaerobic and low light intensity

Answer: Option B

Solution

Answer: Option B
Solution:
Condition favouring cyclic photophosphorylation is Aerobic and low light intensity.
Cyclic photophosphorylation occurs on the stroma lamella, or fret channels. In cyclic photophosphorylation, the high-energy electron released from P700, a pigment in a complex called photosystem I, flows in a cyclic pathway.
It is favoured in anaerobic conditions and conditions of high irradiance and CO2 compensation points.