Question

The muscle fatigue occurs due to accumulation of:

• A. Pyruvic acid
• B. ATP
• C. Lactic acid
• D. Eroman CO₂

Answer 1

The correct option is C

Lactic acid

The correct answer is option C.

Explanation of the correct option

1. Muscle fatigue is a muscle disease caused by the accumulation of lactic acid in the muscles as a result of continuous muscle activation.
2. The muscles' ability to function is harmed as a result of this.
3. Muscle weariness can be caused by a variety of circumstances, including inadequate energy, decreased blood flow reserves as a result of poor diet, or metabolic abnormalities.

Explanation of the incorrect options

Option A

When the glucose pathway is unavailable, such as when muscles are depleted of oxygen owing to intense physical activity, pyruvic acid is employed to provide energy to the cells.

Option B

Muscular contraction, ion transport nerve impulse propagation, substrate phosphorylation, and chemical synthesis are all processes that use ATP for energy.

Option D

This does not lead to muscle fatigue.

Final answer:

Muscle fatigue occurs due to the accumulation of Lactic acid