Question

Raju was followed by dog in the street to escape from dog he was running very fast and finally reached home but after that he suffered with pain in leg muscles why is he suffering from pain ? explain will it be reduced?​

Answer 1

When Raju was running, his lungs switched from aerobic respiration (respiration from oxygen) to anaerobic respiration. Aerobic respiration breaks down glucose into energy with the help of oxygen, now as he is running, his muscles are experiencing fatigue. Now, anaerobic respiration is when the body does not get enough oxygen to break down the glucose into energy, so the body breaks it down by itself into lactic acid. Lactic acid is a toxic compound C3H6O3 . Now, this compound is being produced rapidly in exchange for energy. The side effect of this compound is that it will cause muscle fatigue and pain. So therefore, he experienced leg pain because of the production of lactic acid. It will be reduced over time by breathing more.