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 release of energy from high-energy compounds, such as glucose. The energy is needed for many processes, such as all synthesis reactions, active transport, and movement of organelles. Plant cells, like all cells, need a continuous supply of energy. If a cell stops respiring, it dies.