Practice Quiz

NREMT Advanced EMT

Category - Medical Knowledge

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When does pyruvic acid convert to lactic acid?
  1. When there is too much sugar in the blood
  2. When there is too much oxygen in the blood
  3. When a patient begins to hyperventilate
  4. When oxygen is not available for glycolysis
Explanation
Answer - D - Pyruvic acid converts to lactic acid when oxygen is not available for glycolysis. Glycolysis is the initial step in glucose metabolism by the cell; it is an anaerobic process that results in the formation of pyruvic acid. If oxygen is not available to continue the process, pyruvic acid will convert to lactic acid.
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