Botany - Photosynthesis in Higher Plants Question with Solution | TestHub

BotanyPhotosynthesis in Higher PlantsMechanism of PhotosynthesisEasy2 minPYQ_2012
BotanyEasysingle choice

Photorespiration shows formation of

Options:

Answer:
D
Solution:

Photorespiration is the light dependent process of oxygenation of ribulose biphosphate (RuBP) and release of carbon dioxide by the photosynthetic organs of a plant. Normally photosynthetic organs do the reverse in the light, i.e., uptake of and release of . At high temperature, RuBP carboxylase functions as oxygenase and instead of fixing carbon dioxide ( cycle), oxidises ribulose 1,5 -biphosphate to produce a 3-carbon phosphoglyceric acid and a 2-carbon phosphoglycolate. Photorespiration does not produce energy or reducing power. Rather, it consumes energy. Further, it undoes the work of photosynthesis. There is loss of fixed . Therefore, photorespiration is a highly wasteful process. This happens only in case of plants. plants have overcome the problem of photorespiration.

Stream:AIIMSSubject:BotanyTopic:Photosynthesis in Higher PlantsSubtopic:Mechanism of Photosynthesis
⏱ 2mℹ️ Source: PYQ_2012

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