Multiple Choice
In oxidative phosphorylation, which enzyme directly phosphorylates ADP to form ATP using the proton-motive force across the inner mitochondrial membrane?
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Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation
Oxidative Phosphorylation 1
Multiple Choice
In oxidative phosphorylation, how many electrons does one molecule of NADH donate to Complex I (NADH dehydrogenase) of the electron transport chain?
A
1 electron
B
4 electrons
C
6 electrons
D
2 electrons
Verified step by step guidance1
Understand that NADH is a key electron carrier in cellular respiration, specifically in oxidative phosphorylation.
Recall that NADH donates electrons to Complex I (NADH dehydrogenase) of the electron transport chain.
Recognize that NADH carries electrons in pairs because it is derived from the reduction of NAD+ by two electrons and one proton.
Know that Complex I accepts these electrons from NADH and transfers them through a series of cofactors within the complex.
Conclude that one molecule of NADH donates 2 electrons to Complex I during oxidative phosphorylation.
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