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Human systems (circulatory (pulse is wave of blood passing through artery,…

- - - - white blood cells
      - red blood cells
      - platelets
      - plasma
  - - - arteries
        
        away from heart
      - capillaries
      - veins
        
        to the heart
- - - - proteins
        
        essential for growth and repair of cells
      - minerals
        
        control chemical changes In the body
      - fats and oils
        
        high energy nutrients
      - vitamins
      - carbohydrates
        
        provide energy
      - water
        
        60% of body
        
        dissolve and carry chemicals around
        
        blood is 90% water
      - fibre
        
        allow food to move through intestine
        
        suck out water
  - - - when using physical methods to break food down to smaller pieces, e.g grinding
    - - when chemicals in the body react with the food
      - use enzymes to break down
        
        protease
        
        amylase
        
        break down starch
        
        lipase
        
        sucrase
  - - - salivary glands
        
        oesophagus
        
        stomach
        
        liver
        
        gall bladder
        
        pancreas
        
        1 more item...