TORONTO -. Mike Babcock's first exhibition schedule as coach of the Maple Leafs will take him to some interesting arenas.
There are two types of 'respiration': pulmonary (visible breathing) and cellular (which is not visible). In pulmonary respiration the unwanted gas expelled is mainly carbon dioxide. This is then replaced during the inhalation breathing phase by the oxygen content in the air.
Respiration is the chemical process by which organic compounds release energy. The compounds change into different ones by exergonic reactions. There are two types of respiration: aerobic, which requires oxygen and releases lots of energy. anaerobic, which does not require oxygen but releases much less energy per mole of starting material.