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Question

A person gets cramps in the legs during marathon (a long distance race).
(a) Name the chemical whose accumulation in his leg muscles produces cramps.
(b) What type of respiration produces this chemical?
(c) How can the person get relief from cramps in muscles caused during marathon?


Solution

(a) The chemical whose accumulation in leg muscles produce cramps is called lactic acid.
(b) Lactic acid is a product of anaerobic respiration.
(c) The person can get relief by placing his legs in warm water for some time. This improves the circulation of blood and removes the accumulation of lactic acid.

Science
Lakhmir Chemistry (2020, 2021)
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