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Food and Digestion (Food groups (Carbohydrates (Used for energy in the…

- - - - Some food sources are:
        
        Pasta
        
        Rice
        
        Bread
        
        Cereals
        
        Examples of this type of melocule are:
        
        Glucose
        
        Lactose
        
        Carbohydrates are broken down into glucose.
        It is needed on respiration.(See respiration booklet for more nformation).
  - - - Some food sources are:
        
        Meats
        
        Eggs
        
        Nuts
        
        Mushrooms
        
        Examples of this molecule are:
        
        Enzymes like amino acids
        
        These are broken down into amino acids.
  - - - Some food sources are:
        
        Dairy products
        
        Fat on meats
        
        Olive oil/oil
        
        Examples of this type of molecule are:
        
        Glycerol
        
        Fatty acids
        
        These are broken down into glycerol and fatty acids.
  - - - Some food sources are:
        
        Fruit and veg
        
        Red meat
        
        Examples of this type of molecule:
        
        Calcium,Potassium
        
        Sodium , Iron
        
        Idine, Zinc
        
        Magnesium
  - - - Use in the body is to prevent certain diseases like scurvy.
        
        A source is fruit and veg
        
        An example of this type of molecule
        
        Vitamin C-
        Asorbic acid
        
        Vitamins are compounds
  - - - Some food sources are:
        
        Cabbage
        
        Broccoli stem
        
        Brown bread
        
        Cereals
        
        An example of this type of molecule is Cellulose.
  - - - Some food sources are:
        
        water
        
        Everything we eat.
        
        Example of this type of compound is H20.
- - - - The enzyme responsible for breaking down starch.
        A space at the back of the mouth.
  - - - Look at respiration for more information. #
- - - - The other tube is you rachea or windpipe.
        (See respiration for more information.)
      - Peristalsis
        
        The muscles in the oesapahgus squeeze the
        food in a muscle wave making it go down the tube to the stomach.
  - - - The stomach mainly digests protein.
  - - - A sphincter is a ring shaped muscle.
- - - - Dimple tile
      - A bottle of Iodine
      - A pipette
    - - Collect a dimple tile and place the food samples
        on it.
        
        Place 2 drops of iodine using a pipette onto each sample .
        
        If the food sample turns black it means it constrains starch.
  - - - Test tubes, beaker, hot water, Benedicts solution
        and pipette.
    - - Add Benedicts solution into test tubes and drop in
        small food sample.
        
        But test tubes into hot water.
        
        if the solutions turns green, yellow or orange
        glucose is present.
  - - - Biuret A (sodium hydroxide)
      - Biuret B (copper sulphate)
      - Test tubes
      - water
    - - Break up food and add water to create solution
        
        Add biuret A to make solution alkaline.
        
        carefully add some Biuret B in to solution.
        
        If solution turns purple Protein is present.
- - - - Digestion of lipids, proteins and carbohydrates take place here.
        
        To get the maximum amount of glucose for energy our
        body needs to be able to absorb it all.
        
        Our body does this by using tiny structures called vili.
        
        They work by having thin walls which the glucose molecules can
        pass through diffusion,
        
        They do this by going from an area of high concentration to low concentration.