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Lipids, Carbohydrates and proteins - Coggle Diagram

- - - - the unique sequence of amino acids that form a protein are called the primary structure
    - - Secondary structure is where polypeptide chains form different shapes this is determined by their primary structures shape
      - the secondary structure is held together by hydrogen bonds
      - two common secondary structures are alpha helices and beta pleated sheets
    - - The 3D protein structure is called the tertiary structure
      - tertiary structure is determined by the secondary structures shape
      - protein 3D structure
        
        Globular
        
        ball structures and water soluble
        
        Fibrous
        
        Long fibres and insoluble in water
    - - the structure formed when two or more polypeptide chains join together
      - proteins sometimes have an inorganic component called the prosthetic group (for example the haem group in haemglobin
- - - - made up of 3 carbons with a hydroxyl group and hydrogen atoms occupying the other positions
    - - Consist of a acid group and a hydrocarbon chain
      - Saturated and non saturated
        
        non saturated
        
        double bond between carbons
        
        Saturated
        
        no double bond between carbons
        
        saturated tend to be more oily and fluid