Which stage of cellular respiration requires ATP?

which stage of cellular respiration requires ATP?

glycolysis

krebs citric acid cycle

electron transport chain

fermentation

none of these
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1 Answer

Glycolysis.

I think it's something like 2 ATP are used for activation energy. Glycolysis actually produces like 4 ATP, but 2 are used for activiation energy, so people usually just say glycolysis produces 2 ATP.
by Level 2 User (2.9k points)

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