Elaborat and Explain the different steps of Nutrition
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Explanation:
The five steps involved in nutrition are below with the main site/structures involved in brackets:
INGESTION = the taking in of food, i.e. the process of eating (mouth)
DIGESTION = the mechanical and chemical breakdown of food (mouth, tongue, peristalsis, stomach, enzymes, duodenum)
ABSORPTION = soluble digested food is taken up by the body (small intestine)
ASSIMILATION = soluble digested food is taken in/up by the specific body part to perform specific functions
EGESTION = release of undigested food and waste from the digestive canal (colon, rectum, anus)
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Nutrition is defined as the process of taking food to carry out different functions of the body needed for the survival of the organisms the two main types of nutrition is autotrophic and heterotrophic
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