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Agriculture · Q905

Genetics And Plant Breeding

Graduate and Post Graduate · Agriculture · question 905

Q905

Photorespiration is induced by

A.
High light intensity
B.
High temperature
C.
High O2 content
Answer
D.
High CO2 content

Answer: Option C

Solution

Answer: Option C
Solution:
Photorespiration is induced by High O2 content.
Photorespiration refers to a process in plant metabolism where the enzyme RuBisCO oxygenates RuBP, wasting some of the energy produced by photosynthesis.
This process is induced by a higher concentration of oxygen. RuBisCO enzyme catalyzes the carboxylation of RuBP during the first step of the Calvin cycle, functions as an oxygenase, and oxygen fixation is increased.
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