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Question

Cell organelles participating in photorespiration

A
Only peroxisome
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B
Peroxisome & Glyoxysome
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C
Peroxisome, Mitochondria & Chloroplast
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D
Only Mitochondria
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Solution

The correct option is C Peroxisome, Mitochondria & Chloroplast
Photorespiration results in the light-dependent uptake of oxygen and release of carbon dioxide and is associated with the synthesis and metabolism of a small molecule called glycolate. Photorespiration takes place in green plants at the same time that photosynthesis does. Because in photosynthesis carbon dioxide is taken in, and in photorespiration carbon dioxide is given off, these two processes work against each other. The end result is that photorespiration decreases the net amount of carbon dioxide which is converted into sugars by a photosynthesizing plant. By interfering with photosynthesis in this way, photorespiration may significantly limit the growth rate of some plants.

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