When a mammal respires anaerobically for a long time
A.
pyruvic acid is convened into acetyl COA
B.
more energy is released from fats in the body
C.
lactic acid accumulates in the muscles
D.
the Krebs cycle is fully completed.
Correct Answer: Option C
Explanation
When a mammal respires anaerobically for a long time, lactic acid builds up in the muscles, leading to fatigue and cramps.
Lactic acid build-up: Anaerobic respiration produces lactic acid as a waste product when glucose is broken down. This lactic acid accumulates in the muscles.
Muscle fatigue: A buildup of lactic acid causes muscle fatigue.
pH drop: If too much lactic acid builds up, the pH falls, which can affect enzyme function and lead to fatigue and cramps. The correct answer is option C
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