The electron transport system in mitochondria is located in the:
1. Inner mitochondrial membrane
2. Outer mitochondrial membrane
3. Inter membrane space
4. Matrix

Oxygen drives the process of ATP production via ETS. The best explanation for this would be that oxygen:
1. is needed at the end of the aerobic respiration
2. is the terminal electron donor
3. is not required in the glycolytic pathway
4. acts as the final hydrogen acceptor

What process in aerobic respiration generates maximum ATP?