Question

during vigorous physical exercise lactic acid is formed from glucose inside the muscle cells because ​

Answer 1

Explanation:

When the body has plenty of oxygen, pyruvate is shuttled to an aerobic pathway to be further broken down for more energy. But when oxygen is limited, the body temporarily converts pyruvate into a substance called lactate, which allows glucose breakdown—and thus energy production—to continue.

Answer 2

Explanation:

When when we run, our leg muscles need a lot of energy and respire very fast. As as they do not get sufficient oxygen there is anaerobic li and produce lactic acid if we keep on running, lactic acid accumulates in the muscles and results in muscle cramps. After relaxation, the lactic acid breaks down and we feel comfortable.

Hope this helps mate ☺️.