Multiple Choice
In oxidative phosphorylation, which structure in the inner mitochondrial membrane is directly responsible for synthesizing ATP from ADP and inorganic phosphate?
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Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation
Oxidative Phosphorylation 1
Multiple Choice
In oxidative phosphorylation, which chemical change converts ADP to ATP?
A
Phosphorylation of ADP by addition of inorganic phosphate () to form ATP
B
Oxidation of ADP by removal of electrons to form ATP
C
Hydrolysis of ATP to ADP and
D
Reduction of ADP by addition of electrons and protons to form ATP
Verified step by step guidance1
Understand that ATP (adenosine triphosphate) is formed from ADP (adenosine diphosphate) by the addition of a phosphate group.
Recognize that the process of adding a phosphate group to ADP is called phosphorylation, specifically the addition of inorganic phosphate (P\_i).
Recall that in oxidative phosphorylation, energy from the electron transport chain is used to drive the phosphorylation of ADP to ATP.
Note that oxidation and reduction involve electron transfer, but the conversion of ADP to ATP is not an oxidation or reduction reaction; it is a phosphorylation reaction.
Therefore, the chemical change converting ADP to ATP is the phosphorylation of ADP by addition of inorganic phosphate (P\_i) to form ATP.
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