Respiration process in animals
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Respiration is an oxidation process which involves degradation of a complex organic compound , hence carbon dioxide and water and energy are produced. Respiration process can be divided into two phases – External Respiration or Breathing In this process, animals intake oxygen and release carbon dioxide. It is also known as breathing . This is mainly two phases. Inspiration: It is the process by means of which oxygen is taken to the lungs. Expiration: During expiration, carbon dioxide is expelled out from the respiratory organs into the environment. The process of exchange gases varies in different animals. 1. Through Plasma Membrane In unicellular animals, such as amoeba, exchange of gases takes place through cell surface. They absorb oxygen from the surrounding air or water and give out carbon dioxide through plasma membrane by diffusion . 2. Through Body Wall or Skin Tapeworms, earthworms, and leeches use their skin for ...
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