During photorespiration, the oxygen consuming reaction(s) occur in
During photorespiration, the oxygen consuming reaction(s) occur in
(a) Stroma of chloroplasts and peroxisomes
(b) Grana of chloroplasts and peroxisomes
(c) Stroma of chloroplasts
(d) Stroma of chloroplasts and mitochondria
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Correct option (a) Stroma of chloroplasts and peroxisomes
Explanation :
The first reaction of photorespiration occurs in stroma of chloroplast. In this reaction the RuBP, (Ribulose 1-5 biphosphate) consumes 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 released as by product.
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