Ingestion - Taking in of food into the mouth, Mechanical Digestion - breaking down food by movement e.g teeth, stomach churning, Chemical Digestion - Enzymes break down insoluble food molecules into soluble, Absorption - Small soluble molecules cross into the blood stream through small intestine by diffusion, Assimilation - Food is used by cells for growth, repair and to make energy, Egestion - Fibre and other undigested substances pass to rectum, Defaecation - Faeces is expelled from the body,

Digestion definitions

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