Unlike aerobic respiration, anaerobic respiration does not need oxygen. It is the release of a relatively small amount of energy in cells by the breakdown of food substances in the absence of oxygen.
Anaerobic respiration happens in muscles during hard exercise:
glucose → lactic acid (when you get a stitch, ouch!)
Glucose is not completely broken down, so much less energy is released than during aerobic respiration.
The lactic acid needs to be oxidised to carbon dioxide and water later.
This causes an oxygen debt - known as excess post-exercise oxygen consumption This is why we keep on breathing deeply for a few minutes after we have finished exercising.
Comments
No comments have yet been made