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Question

Is photorespiration the opposite of photosynthesis?

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Solution

Photorespiration and photosynthesis:

  1. Photorespiration is the process where the oxygenation of RuBP (ribulose bisphosphate) occurs by the enzyme Rubisco (Ribulose bisphosphate carboxylase/oxygenase) in presence of light is known as photorespiration.
  2. Whereas photosynthesis is the process of production of glucose by harnessing the sunlight using chlorophyll.
  3. Hence, yes photorespiration is the reverse of photosynthesis as in photorespiration, oxidation of CO2 occurs by the addition of O2 whereas in photosynthesis the CO2 is reduced to carbohydrate glucose.

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