EVERYDAY SCIENCE

Detailed explanation-1: -After hard exercise, panting allows excess lactic acid to be: Carried to the liver to be broken down. Broken down to form carbon dioxide and water. Converted into glucose for storage.

Detailed explanation-2: -After running you continue to breathe quickly. The extra oxygen you breathe in reacts with the lactic acid in your muscles, breaking it down to make carbon dioxide and water. As the lactic acid breaks down the cramps will begin to disappear.

Detailed explanation-3: -"When your muscles are making energy anaerobically, lactic acid is created as a byproduct, ” says Dr. Hedt. “It does build up in the muscle during exercise, and your muscle can be chock-full of it by the time you finish a strenuous workout, but generally all of this lactic acid is gone within about an hour afterwards."

Detailed explanation-4: -Removal of lactic acid Lactic acid can be removed in the following ways: Oxidation into carbon dioxide and water in the inactive muscles and organs. Used by the muscles as an energy source. Transported in the blood to the liver where it is converted to blood glucose and glycogen (cori cycle, see Key terms).

Detailed explanation-5: -When a person exercises, the body requires more energy, which means body tissues use more oxygen than at rest. Because the metabolic rate of a person increases as that person uses more oxygen, and hence will also produce more carbon dioxide.