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How do unicellular organisms respire?

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How do unicellular organisms respire?
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Yogita Ingle 6 years, 9 months ago

Unicellular organisms are those organisms which are made up of a single cell. Some of the common examples of unicellular organisms are amoeba, paramecium, etc. Plant respire through stomata and lenticels whereas animals respire through lungs, gills and skin. But talking about respiration in unicellular organisms, there is no such respiratory organ. The respiration in unicellular organisms takes place through their general body surfaces or cell membrane. There is an exchange of oxygen and carbon dioxide through the body surface by the process of diffusion. Diffusion is the process of movement of a substance from higher concentration to the lower concentration.

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