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DIGESTION - Coggle Diagram

- - - - Carbon
      - Hydrogen
      - Oxygen
    - - Starch in rice, bread, noodles and potatoes
      - Different forms of sugars in fruits
    - - Provide primary source of energy for various activities such as growth and movement
  - - - Carbon
      - Hydrogen
      - Oxygen
    - - Butter, margarine and cheese
    - - Provide twice amount of energy compared to carbohydrates of the same mass
      - Stored under the skin to insulate body from excessive heat loss
  - - - Carbon
      - Hydrogen
      - Oxygen
      - Nitrogen
      - Sulphur
      - Phosphorus
    - - Meat, fish, milk, nuts and eggs
    - - For growth of new cells and tissues
      - Repair of damaged tissues
      - Sources of energy when carbohydrates and fats are not available
- - - - When they are broken down into smaller and simple form,
        
        they can then move through the intestinal walls and enter bloodstream to be transported to all parts of the body.
  - - - why is it important?
        
        To allow food subsrance to enter blood through the intestinal wall.
      - where does it take place
        
        Mouth (starch)
        
        Stomach (protein)
        
        Small intestine (carbohydrate, fats and proteins)
      - what is it
        
        The identities of food substances do change, so new products are formed.
        
        It is a process whereby large molecules are broken down into smaller and simple molecules by enzymes.
    - - Why is it important?
        
        to increase their surface area
      - Where does it take place?
        
        Mouth (chewing action)
        
        Oesophagus (peristalsis)
        
        Stomach (churning action)
        
        Small intestine (emulsification)
      - What is it?
        
        It is a physical breakdown of large pieces of food into smaller pieces.
        
        The identities of food substances do remain unchanged, so no new products are formed
- - - - Name of enzyme
        
        Function of enzyme
        
        proteins → amino acids
        
        Proteases
    - - Name of enzyme
        
        Carbohydrases
        
        Function of enzyme
        
        carbohydrates → glucose
      - Name of enzyme
        
        Proteases
        
        Function of enzyme
        
        proteins →amino acids
      - Name of enzyme
        
        Function of enzyme
        
        starch → maltose
        
        Amylase
      - Name of enzyme
        
        Maltase
        
        Function of enzyme
        
        maltose → glucose
      - Name of enzyme
        
        Function of enzyme
        
        fats → glycerol + fatty acids
        
        Lipase
    - - Name of enzyme
        
        Salivary amylase
        
        Function of enzyme
        
        starch → maltose