In order for a substance to transfer a phosphate to ADP in a substrate-level phosphorylation reaction, which of the following must be true?
A. The phosphate donor must have a higher phosphate transfer potential than ATP.
B. The phosphate donor must have a higher oxidation-reduction potential than ATP.
C. The phosphate donor must have a lower oxidation-reduction potential than ATP.
D. The phosphate donor must have a lower phosphate transfer potential than ATP.
Answer: A
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