RESPIRATION

Respiration
It is a process in living organisms involving the production of energy, typically with the
intake of oxygen and the release of carbon dioxide from the oxidation of complex organic
substances.
(i) Gaseous exchange : Intake of oxygen from the atmosphere and release of carbondioxide.
(ii) Breakdown of simple food in order to release energy inside the CellularRespiration
Breakdown of Glucose by various pathways

Respiration
Exchange of Gases between alveolus, blood and tissues.

Terrestrial Organism – use atmospheric oxygen for respiration
Aquatic Organisms – use oxygen dissolved in water.
Respiration in Plants : Respiration in plants is simpler than the respiration in
animals. Gaseous exchange occur through
1. Stomata in leaves
2. Lenticels in stems
3. General surface of the roots.
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