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Question
Which of the following cell organelles is associated with photorespiration?
Which of the following cell organelles is associated with photorespiration?
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Solution
The correct option is D All of the above
Photorespiration is a special type of respiration shown by many green plants when they are exposed to light. It involves three organelles chloroplast, perioxisomes and mitochondria. In the chloroplast, phosphoglycolate is unstable and is converted to glycolate. PGA is used up in the calvin cycle. The peroxisomes present in the cell convert the glycolate into glyoxylate and then into glycine. Glycine is converted to serine and CO2 in the mitochondria. The serine thus formed is converted to glycerate, through a series of reactions which occurs in the peroxisome. Hence, option D is correct.
Photorespiration is a special type of respiration shown by many green plants when they are exposed to light. It involves three organelles chloroplast, perioxisomes and mitochondria. In the chloroplast, phosphoglycolate is unstable and is converted to glycolate. PGA is used up in the calvin cycle. The peroxisomes present in the cell convert the glycolate into glyoxylate and then into glycine. Glycine is converted to serine and CO2 in the mitochondria. The serine thus formed is converted to glycerate, through a series of reactions which occurs in the peroxisome. Hence, option D is correct.
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