The energy source for substrate-level phosphorylation (SLP) differs from that of oxidative phosphorylation (OP) in that ________.
A. OP is driven using energy provided by a proton motive force, whereas the energy to add a phosphate group to ADP during SLP comes from the direct transfer of a phosphate group from a molecule with a higher phosphate transfer potential than ATP
B. SLP is driven using energy provided by a proton motive force, whereas the energy to add a phosphate group to ADP during OP comes from the direct transfer of a phosphate group from a molecule with a higher phosphate transfer potential than ATP
C. SLP is driven using energy provided by a proton motive force, whereas the energy to remove a phosphate group from ATP during OP comes from the direct transfer of a phosphate group from a molecule with a lower phosphate transfer potential than ATP
D. OP is driven using energy provided by a proton motive force, whereas the energy to add a phosphate group to ADP during SLP comes from the direct transfer of a phosphate group from a molecule with a lower phosphate transfer potential than ATP
Answer: A
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