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When RuBisCO binds O2 instead of CO2, the process that follows is called

  • (a) photorespiration Correct
  • (b) fermentation Your answer
  • (c) photophosphorylation Your answer
  • (d) photosynthesis Your answer
Your answer: Correct answer: (a)
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Explanation

Why (a) is correct

When RuBisCO binds O2 instead of CO2, the pathway that follows is photorespiration.

Why the other options are wrong

  • (b) · your answer Fermentation is anaerobic breakdown of sugar.
  • (c) · your answer Photophosphorylation is ATP synthesis using light.
  • (d) · your answer Binding of CO2, not O2, leads to photosynthesis.
NCERT point: Photorespiration makes no sugar and no ATP.
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