Vigorous physical exercise often leads to cramps in the legs. This is due to the conversion of pyruvate to

Carbon dioxide

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Ethanol

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Lactic acid

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Lactose

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Solution

The correct option is C Lactic acid
During vigorous exercise, most of the energy in our muscles is produced by aerobic respiration. Anaerobic respiration in muscles provides some extra energy required for the heavy physical activity. This brings about partial breakdown of glucose to form lacticacid. The accumulation of lactic acid in the muscles causes cramps.

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Similar questions

Lack of oxygen in muscles often leads to cramps in the legs of sprinters. This is due to conversion of pyruvate to :
(a) ethanol
(b) carbon dioxide
(c) acetic acid
(d) lactic acid

Question 33
Lack of oxygen in muscles often leads to cramps among cricketers. This happens due to

(a) Conversion of pyruvate to ethanol
(b) Conversion of pyruvate to glucose
(c) Non-conversion of glucose to pyruvate
(d) Conversion of pyruvate to lactic acid

Q. A sprinter experiences muscle cramps in his legs due to the lack of oxygen in muscles. This is due to the conversion of pyruvate to:

Q. During heavy exercise, we get cramps in the legs due to the accumulation of

Q. Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.

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