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Digestion - Coggle Diagram

- - - - constituent elements
        
        Oxygen
        
        Carbon
        
        source of nutrients
        
        Starch in rice, bread, noodles and potatoes
        
        Hydrogen
  - - - constituent elements
        
        Hydrogen
        
        source of nutrients
        
        butter
        
        margarine
        
        cheese
        
        oxygen
        
        carbon
  - - - constituent elements
        
        oxygen
        
        source of nutrients
        
        milk
        
        nuts
        
        fish
        
        eggs
        
        Meat
        
        nitrogen
        
        hydrogen
        
        carbon
        
        sulfur phosphorus
- - - - what is it?
        
        The identities of food substances do remain unchanged, so no new products are formed.
        
        why is it so important?
        
        To increase the surface area
        
        where does it take place?
        
        Oesophagus (peristalsis)
        
        Stomach (churning action)
        
        Mouth (chewing action)
        
        Small intestine (emulsification)
        
        It is a physical breakdown of large pieces of food into smaller pieces.
    - - what is it?
        
        It is a process whereby large molecules are broken down into smaller and simple molecules by enzymes.
        
        The identities of food substances do change, so new products are formed.
        
        why is it so important?
        
        To allow substances to be absorbed into the bloodstream through the small intestine
        
        where does it take place?
        
        Stomach (protein)
        
        Small intestine (carbohydrate, fats and proteins)
        
        Mouth (starch)
- - - - where are they found?
        
        mouth
        
        name of enzymes
        
        Salivary amylase
        
        maltose <-- starch
        
        stomach
        
        name of enzymes
        
        Proteases
        
        amino acids <-- protein
        
        small intestine
        
        name of enzymes
        
        carbohydrase
        
        maltase
        
        lipase
        
        glycerol + fatty acids <-- fats
        
        amylase
        
        starch <-- maltose
        
        proteases