What happens to pyruvic acid in the end, if oxygen is absent. Show only through a word equation.
What is this kind of respiration termed?

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Please find below the solution to the asked query:

Anaerobic respiration occurs in absence of oxygen. 

Glucose Pyruvic acid 

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In the absence of oxygen, homolactic fermentation prevents NADH from accumulating, which would halt glycolysis and rob the cell of its energy source. Fermentation doesn't yield any ATP molecules, but it does allow glycolysis to continue and producing a small trickle of ATPs. In homolactic fermentation, lactate is the sole product.
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