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) Carbon dioxide     (b) alcohol     (c) lactose     (d) lactic acid

(d) lactic acid

Due to anaerobic respiration, the concentration of lactic acid increases in muscle cells when they are lacking in oxygen. In this respiration, glucose is converted into lactic acid with the release of a small amount of energy in the form of ATP.

This accumulation of lactic acid leads to painful contractions or cramps in leg muscles.

Tutorialspoint

e

Updated on: 24-Mar-2023

20 Views

Kickstart Your Career

Get certified by completing the course

Get Started