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biological molecules - Coggle Diagram

- - - - starch
        
        how to detect
        
        iodine test
        
        brown color
        
        turns to
        
        blue-black, if starch is present
      - sugar
        
        how to detect
        
        benedict's test
        
        blue solutions
        
        turns to
        
        green, if it's low concentration
        
        yellow, if it's slightly higher concentration
        
        orange-red, if it's really high concentration
      - cellulose
    - - carbon
      - hydrogen
      - oxygen
    - - Contains twice the hydrogen of carbon or oxygen
    - - nutrients your body uses for energy, Simplest type of carbohydrate are sugars
        
        one type of sugar is
        
        glucose
        
        made from
        
        6 carbon atoms
        
        12 hydrogen atoms
        
        arranged to
        
        1 more item...
        
        6 oxygen atoms
        
        is
        
        main energy source, & any extra gets stored as glycogen for later use.
        
        plant version of glycogen
        
        2 more items...
  - - - lipids
    - - contains
        
        3 elements; hydrogen, carbon & oxygen
        
        same molecules as carbohydrate but less oxygen
      - made of
        
        2 kinds of smaller molecule; glycerol and fatty acids
      - important for
        
        making cell membranes & energy stores
      - how to detect
        
        ethanol emulsion test
        
        milky appearance = present
  - - - nitrogen, hydrogen, carbon, & oxygen
    - - long chains called amino acids
    - - antibodies, which helps to protect the body against the pathogens/ bacteria.
    - - biuret test
        
        violet = present