Question

A rabbit runs very fast but after some time feel tired because:

• A. Formation of lactic acid in muscles
• B. Formation of succinic acid in muscles
• C. Loss of energy
• D. None of the above

Answer 1

The correct option is A Formation of lactic acid in muscles

A rabbit runs very fast but after some time feels tired because of the formation of lactic acid in muscles, as there is an increased demand for oxygen but due to limited oxygen supply muscle cells do perform anaerobic respiration. This anaerobic respiration causes the accumulation of Lactic acid which inturn causes weakness and fatigue.

Thus, the correct answer is (a).