AP BIOLOGY

Detailed explanation-1: -Due to the need for a lot of energy to conduct strenuous exercises like running, cycling, weightlifting, and so on, which results in a temporary oxygen deficit in the muscle cells. In the absence of oxygen, the cell of the organism undergoes anaerobic respiration, which converts glucose in muscle cells to lactic acid.

Detailed explanation-2: -Due to low level of oxygen, anaerobic respiration occurs in the muscles. As an end product of cellular respiration, lactic acid is produced inside the muscle which gets deposited in the muscle. Lactic acid deposition leads to muscle fatigue causing pain and the muscle fails to contract further properly.

Detailed explanation-3: -Oxygen debt occurs when the body reaches a state of anaerobic respiration during intense exercise. When a person engages in high levels of physical activity, the body cannot distribute oxygen to the cells at a sufficiently rapid pace to keep up with the oxygen demand.

Detailed explanation-4: -The muscle cells perform anaerobic respiration when we run very fast. This means that anaerobic respiration is more efficient than aerobic respiration.

Detailed explanation-5: -Our muscles get muscle cramp because our muscles can respire anaerobically, resulting in the formation of lactic acid.