Which term describes metabolic processes not requiring oxygen?

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Multiple Choice

Which term describes metabolic processes not requiring oxygen?

Metabolic processes that don’t require oxygen are anaerobic. The term reflects pathways that proceed without oxygen, such as glycolysis followed by fermentation, which can quickly generate ATP even when oxygen is scarce. While this allows rapid energy production, the total ATP yield is limited compared with oxygen-using pathways. Other terms describe different concepts: respiration (in the cellular sense) usually involves oxygen and includes the Krebs cycle and oxidative phosphorylation, producing much more ATP; ventilation is the physical movement of air into and out of the lungs; aerobic metabolism specifically refers to oxygen-requiring processes.

Metabolic processes that don’t require oxygen are anaerobic. The term reflects pathways that proceed without oxygen, such as glycolysis followed by fermentation, which can quickly generate ATP even when oxygen is scarce. While this allows rapid energy production, the total ATP yield is limited compared with oxygen-using pathways.

Other terms describe different concepts: respiration (in the cellular sense) usually involves oxygen and includes the Krebs cycle and oxidative phosphorylation, producing much more ATP; ventilation is the physical movement of air into and out of the lungs; aerobic metabolism specifically refers to oxygen-requiring processes.

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