what is the terminal electron acceptor in aerobic respiration?
May.24, 2010 in
Aerobic Respiration
What occurs if it is not present in the mitochondrion?
What is Aerobic Respiration?
Aerobic respiration is the main means by which both plants and animals utilize energy in the form of organic compounds that was previously created through photosynthesis
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May 24th, 2010 at 5:15 pm
Well, it IS called aerobic respiration because it requires oxygen. Oxygen is the final electron acceptor in aerobic respiration.
If oxygen is not present, aerobic respiration is not possible. Therefore, pyruvate, the end-product of glycolysis, is not transported to the mitochondrion, and is instead converted to lactic acid, sped up by the enzyme, lactic acid dehydrogenase.
Thus, in the absence of oxygen, no further energy (in the form of adenosine triphosphate or ATP) can be released from the original molecule of glucose, only 4 ATP can be formed. And glycolysis itself needs 2 ATP to run it. So, the net product is only 2 ATP.