Biology · Photosynthesis and Photorespiration
Which statement is MOST accurate regarding carbon flow during photorespiration in C3 plants?
- 1Photorespiration fixes additional external CO2 into sucrose
- 2Carbon content remains completely unchanged without any loss
- 3About 25% of the fixed carbon is released back as CO2 in mitochondria✓
- 4100% of carbon entering photorespiration is fixed into glucose
Correct answer
About 25% of the fixed carbon is released back as CO2 in mitochondria
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