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Question

Photorespiration is a wasteful process because

A
no synthesis of sugar takes place
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B
no ATP production takes place
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C
CO2 is released using ATP
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D
all of the above
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Solution

The correct option is D all of the above
Photorespiration is a process where enzyme RuBisCO (ribulose bisphosphate carboxylase oxygenase) takes up oxygen instead of carbon dioxide thereby inhibiting photosynthesis. This eventually leads to decrease in the products of photosynthesis like glucose and oxygen. There is no production of ATP instead it is utilised to release the carbon dioxide. Thus, all the statements justify that photorespiration is a wasteful process.

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