Question

Muscles get fatigued due to accumulation of-
(a) Adenosine triphosphate
(b) CO₂
(c) Lactic acid
(d) Phosphate molecules

Answer 1

Answer:

lactic acid ...Hope it helps you

Answer 2

Muscles get fatigued due to the accumulation of the (c) Lactic acid.

• The glucose burning needs oxygen during the respiration. On being subjected to a continuous exercise, there is a low oxygen availability, in the muscle.
• The low availability leads to an anaerobic glucose breakdown resulting in the lactic acid formation.  
• The muscle buildup of the lactic acid causes the muscle fatigue.