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Multiple Choice
The synthesis of ATP by oxidative phosphorylation is an example of which of the following processes?
A
Glycolysis
B
Fermentation
C
Substrate-level phosphorylation
D
Chemiosmosis
Verified step by step guidance
1
Understand that oxidative phosphorylation is a part of cellular respiration that occurs in the mitochondria.
Recognize that oxidative phosphorylation involves the electron transport chain and the generation of a proton gradient across the inner mitochondrial membrane.
Identify that chemiosmosis is the process where the energy stored in the proton gradient is used to synthesize ATP from ADP and inorganic phosphate.
Differentiate between substrate-level phosphorylation, which directly transfers a phosphate group to ADP, and oxidative phosphorylation, which relies on the proton gradient.
Conclude that the synthesis of ATP by oxidative phosphorylation is specifically driven by chemiosmosis, as it uses the energy from the proton gradient to power ATP synthase.