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Why Glycolysis Is Sometimes Called Anaerobic Respiration

publish date: 2026/06/20 10:12:18.392460 UTC

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Why is glycolysis itself sometimes referred to as anaerobic respiration?

Because it takes place in the mitochondria

Because it produces ethanol directly

Because no molecular oxygen is used during any of its steps

Because it only occurs in anaerobic bacteria

Correct Answer

Because no molecular oxygen is used during any of its steps

Explanation

Glycolysis can proceed whether or not oxygen is present, because none of its steps directly require molecular oxygen. This is why glycolysis itself is sometimes described as an anaerobic process, distinct from the oxygen-dependent stages that follow it.

Reference

Biology: A self-teaching guide

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