Human Digestive System

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human digestive system
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  HUMAN DIGESTIVESYSTEM Science process skill’s book – page S11 Science form 2 text’s book – page 49  DIGESTION - The process of breaking down largefood molecule into smaller moleculesthat can be readily absorb by the body.- occurs in an eight  – metre long tubecalled gut/alimentary canal.  Physical digestion  - involve the mechanicalprocess of breaking down largepiece of food into smallerparticles using teeth and churning movements .  Chemical digestion   - involves the action of various enzymes in breaking downcomplex food molecules.- enzymes are substance act ascatalyst and generally speed up the chemical reaction in our body.
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