Acidic $\mathrm{pH}$ of muscles is due to

Acidic $\mathrm{pH}$ of muscles is due to
  1. lactic acid
  2. ketone
  3. $\mathrm{O}_2$
  4. arginine.

Solution

Lactic acid is formed and accumulated in the muscle under conditions of high energy demand, rapid fluctuations of the energy requirement and insufficient supply of $\mathrm{O}_2$. This results in acidic $\mathrm{pH}$ of muscle.

Asked in: NEET 2014

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