 
			 
			MCQOPTIONS
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				| 1. | ATPase | 
| A. | synthesizes ATP, coupled to transfer of extracellular protons into the cell | 
| B. | extrudes protons from the cell coupled to the hydrolysis of ATP to ADP | 
| C. | is the enzyme that incorporates ATP into messenger RNA | 
| D. | carries out each of the reactions indicated in (a) and (b) | 
| Answer» E. | |