Oxygen
Oxygen is the final electron acceptor, no part of the process - from the Krebs Cycle through the electron transport chain- can happen without oxygen. Aerobic respiration is complete
Answer:
The fist option!
Explanation:
The energy investment phase of glycolysis involves the investment of two ATP molecules and results in the formation of two molecules of glyceraldehyde phosphate. Two molecules of NADH + H+ are produced. This is an example of a coupled reaction.
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Modified nucleotides perform a large number of functions
Because it can respire anaerobically, without oxygen.
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