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Questions and Answers
What are the products of glycolysis?
What are the products of glycolysis?
Two pyruvate molecules, 2 NADH, and 2 ATP (net)
What is the function of oxygen in aerobic respiration?
What is the function of oxygen in aerobic respiration?
It is the final acceptor of electrons and H+ in the electron transport phosphorylation.
Before it enters the Krebs cycle, what has to happen to the pyruvate molecule?
Before it enters the Krebs cycle, what has to happen to the pyruvate molecule?
- Both A and C. (correct)
- It must be oxidized.
- It must be converted into acetyl-CoA.
- It must be decarboxylated.
Humans are _________ because we require oxygen to survive.
Humans are _________ because we require oxygen to survive.
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Why did organisms need to evolve a way to deal with free oxygen in the atmosphere?
Why did organisms need to evolve a way to deal with free oxygen in the atmosphere?
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Study Notes
Glycolysis
- Glycolysis breaks down glucose into two pyruvate molecules, 2 NADH, and 2 ATP (net).
Aerobic Respiration
- Oxygen is the final acceptor of electrons and H+ in the electron transport phosphorylation.
Krebs Cycle
- Pyruvate must be converted to acetyl-CoA before entering the Krebs cycle.
Humans require Oxygen to survive
- Humans are obligate aerobes as they require oxygen to survive.
Evolution of Oxygen metabolism
- Organisms had to evolve a way to deal with free oxygen in the atmosphere.
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