what types of respiration takes place in human muscles during vigorous exercise and why
Answers
Answer:
Anaerobic respiration happens in muscles during hard exercise.
Explanation:
Anaerobic respiration does not need oxygen (unlike aerobic respiration). It is the release of a relatively small amount of energy in cells by the breakdown of food substances in the absence of oxygen.Glucose is not completely broken down, so less energy is released than during aerobic respiration.
There is a build-up of lactic acid in the muscles during vigorous exercise. The lactic acid needs to be oxidised to carbon dioxide and water later.
The creation of lactic acid (which needs oxygen to be broken down) generates an oxygen debt that needs to be repaid after the exercise stops. This is why we keep on breathing deeply for a few minutes after we have finished exercising.
The difference between the oxygen the body needs during the sudden sprint and what it actually managed to take in is called oxygen deficit.