Question

During heavy exercise, we get cramps in the legs due to the accu mulation of(i) carbon dioxide (ii) lactic acid(iii) alcohol(iv) water

Answer 1

ii) Lactic Acid  ______________________________  Hope that it helps:)

Answer 2

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

ii) Lactic acid

We generally respire aerobically, that is, in the presence of oxygen. But during exercise, there is more demand for energy by the cells of the muscles.

Thus, we respire anaerobically during this time to supply more energy to the muscles which result in the formation of lactic acid which causes muscle cramps.

"