 
			 
			MCQOPTIONS
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				| 1. | Most multi-cellular organisms obtain energy for the synthesis of ATP during oxidative phosphorylation from | 
| A. | high energy phosphate compounds | 
| B. | a proton gradient across the inner mitochondrial membrane | 
| C. | a proton gradient across the cell membrane | 
| D. | a proton gradient across the outer mitochondrial membrane | 
| Answer» C. a proton gradient across the cell membrane | |