- Physical Breakdown - physical digestion through use of structures like teeth and the muscular action of churning in the stomach. Allows ingestion and large SA for chemical digestion
- Chemical Digestion - Breaking down of large insoluble molecules into smaller soluble ones through hydrolysis
Digestion - the breaking down of larger molecules into smaller molecules
Hydrolysis - Splitting up of molecules by adding water to chemical bonds holding them together
Absorption - uptake of soluble molcules into the body
Assimilation - Incorporating absorbed molecules into body tissue
Many foods are polymers (carbohydrates, proteins) and to be absorbed must be broken down into monomers (monosaccharides, amino acids). Enzymes catalyse hydrolysis to do this
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