Question
During photorespiration, the oxygen-consuming reaction(s) occur in
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stroma of chloroplasts and mitochondria
-
stroma of chloroplasts and peroxisomes
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grana of chloroplasts and peroxisomes
-
stroma of chloroplasts
Solution
B.
stroma of chloroplasts and peroxisomes
The first reaction of photorespiration occur in stroma of chloroplast. In this reaction the RuBP(Ribulose 1-5 biphosphate) consume one oxygen molecule in presence of enzyme Rubisco.
In peroxisome the glycolate transferred from chloroplast takes up O2 and formed the glyoxylate whereas the H2O2 release as byproduct.
