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During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is
  • a)
    Alcohol
  • b)
    Lactose
  • c)
    Lactic acid
  • d)
    Carbon dioxide
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
During marathon, we sometimes get painful contractions of leg muscles ...
  • During heavy exercise, the demand for energy is high but the supply of oxygen to produce energy is limited. Therefore, anaerobic respiration takes places in the muscles cells to fulfil the demand for energy. This anaerobic breakdown of glucose leads to the formation of lactic acid in muscles. The accumulation of lactic acid in muscles leads to muscle cramps.
  • Hence, during heavy exercise, we get cramps in the legs due to the accumulation of Lactic acid.
So, the correct answer is 'Lactic acid'.
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During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This isa)Alcoholb)Lactosec)Lactic acidd)Carbon dioxideCorrect answer is option 'C'. Can you explain this answer?
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