객관식
Which of the following best describes the electron transport chain of cellular respiration?
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8. Respiration
Electron Transport Chain
객관식
How would the electron transport chain be affected if oxygen was not present in the cell?
A
The electron transport chain would switch to using carbon dioxide instead of oxygen.
B
The electron transport chain would produce more ATP than usual.
C
The electron transport chain would halt, preventing ATP production.
D
The electron transport chain would continue to function normally.
검증된 단계별 안내1
Understand the role of oxygen in the electron transport chain: Oxygen acts as the final electron acceptor in the electron transport chain, which is a crucial step in cellular respiration.
Recognize the consequences of oxygen absence: Without oxygen, the electron transport chain cannot complete its function, as electrons have no terminal acceptor.
Consider the impact on ATP production: The electron transport chain is responsible for creating a proton gradient that drives ATP synthesis. Without oxygen, this process is disrupted, halting ATP production.
Explore alternative pathways: In the absence of oxygen, cells may resort to anaerobic respiration or fermentation to generate ATP, albeit less efficiently.
Conclude the effect on cellular respiration: The absence of oxygen leads to a cessation of the electron transport chain, significantly impacting the cell's energy production capabilities.
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