What would be the outcome if the pump protein shown in Fig. 5.13a instead acted as a carrier that allowed protons to move from the extracellular fluid into the cytoplasm?
A) The proton electrochemical gradient would be reversed.
B) ATP could be synthesized from ADP + Pi.
C) The number of protons on either side of the membrane would equalize.
D) ATP could be synthesized from ADP + Pi and the number of protons on either side of the membrane would equalize.
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