General science UPPSC 2010 GS-I
Question

Accumulation of which one of the following in the muscles leads to fatigue?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Lactic acid

Detailed Solution:

The correct answer is “Lactic acid”.

Lactic acid accumulation in muscles causes fatigue and soreness. This happens when muscles are subjected to high energy demands, rapid energy fluctuations, and insufficient oxygen supply, such as during intense exercise.

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