Respiration in Plants: Integrated Energy MCQ

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Integrated EnergyHardQuestion 10980

Question

Which statement best explains why mitochondria produce most ATP?

A
Electron transport uses reduced coenzymes to build a proton gradient that drives ATP synthase
Correct
B
Mitochondria directly convert starch into oxygen
C
Krebs cycle alone produces all ATP by substrate-level phosphorylation
D
Fermentation occurs on cristae

Electron transport uses reduced coenzymes to build a proton gradient that drives ATP synthase

The major ATP yield comes from chemiosmotic coupling across the inner mitochondrial membrane.