Multiple Choice
Which of the following statements about mitochondrial chemiosmosis is NOT true?
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8. Respiration
Chemiosmosis
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Which of the following metabolic pathways requires a proton gradient?
A
Fermentation
B
Glycolysis
C
Calvin cycle
D
Oxidative phosphorylation
Verified step by step guidance1
Understand that oxidative phosphorylation is a part of cellular respiration that occurs in the mitochondria.
Recognize that this process involves the electron transport chain, where electrons are transferred through a series of protein complexes.
Learn that as electrons move through these complexes, protons (H⁺ ions) are pumped from the mitochondrial matrix to the intermembrane space, creating a proton gradient.
Realize that this proton gradient generates a potential energy difference across the membrane, known as the proton-motive force.
Know that ATP synthase, an enzyme, uses the energy from the flow of protons back into the matrix to synthesize ATP from ADP and inorganic phosphate, completing the process of oxidative phosphorylation.
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