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Biological Molecules (Carbohydrates (Monosaccharides (types (pentose (5…

- - - - (CH2O)n
    - - sweet tasting
      - soluble
    - - pentose
        
        5 Carbon atoms
      - hexose
        
        6 Carbon atoms
      - tetrose
        
        4 Carbon atoms
      - triose
        
        3 Carbon atoms
      - heptose
        
        7 Carbon atoms
    - - positive result
        
        ranges from green in dilute solutions of reducing sugar to red in concentrated solutions
        
        All monosacccharides and some disaccharides
      - negative result
        
        no colour change
        
        Most disaccharides and polysaccharides
      - using 2cm^3 of the food sample, grinding with water if not already liquid
        
        heat with Benedict's solution
  - - - Maltose
        
        Glucose+Glucose
      - Lactose
        
        Glucose+Galactose
      - Sucrose
        
        Glucose+Fructose
    - - a condensation reaction between two monosaccharides