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After five hours of strenuous hiking up the mountain, a hiker finds it difficult to keep pace with the rest of the group

After five hours of strenuous hiking up the mountain, a hiker finds it difficult to keep pace with the rest of the group. The anaerobic breakdown of glucose in the fatigued muscles of the hiker results in the
Select one:
a. formation of H2O and CO2.
b. maximum release of H+ ions from the Krebs cycle.
c. production of 36 ATP molecules.
d. formation of lactic acid.

Answered by Expert Tutors

d. formation of lactic acid.
Explanation
Whenever glucose is broken down anaerobically, it results in release of lactic acid within the muscles.
The end product of glycolysis is pyruvate, which in anaerobic respiration is converted to lactic acid by the enzyme
Pyruvic acid + NADH ↔ lactic acid + NAD+
The excess amount of lactate in the muscles causes the burning sensation in the legs while running.

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