. Partial breakdown of glucose during heavy exercise produces


 (a) carbon-di-oxide

(b) water

(c) lactic-acid

(d) all

Best Answer

(c)

Heavy exercise requires more energy, but as the supply of oxygen is low, muscles undergo anaerobic-respiration to produce energy. In anaerobic respiration the partial breakdown of glucose occurs producing lactic acid and energy.

Partial breakdown of glucose during heavy exercise produces (Sol.-1)

When supply of oxygen increases the complete breakdown of lactic acid into water and carbon-di-oxide takes place.

 

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