Assimilation (biology)

Assimilation (from similis, lat. = similar), in biology, designates the process of the transformation of external substances and materials into substances and materials internal to the body. Examples of assimilation are:

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Lat. - Biology - Substance - Body

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• By mean of photosynthesis, carbon dioxide and water are transformed into a number of organic molecules in plant cells.
• Nitrogen fixation from the soil into organic molecules by symbiotic bacteria which live in the roots of certain plants, such as Leguminosae.
• The absorption of nutrients into the body after digestion in the intestine and its transformation in biological tissues and fluids
 
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