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Team 4, Lipids, image, An example can be starch which is a polymer that…

- - - - The fatty acid chains are hydrophobic and do not interact with water, whereas the phosphate-containing group is hydrophilic (because of its charge) and interacts readily with water.
    - - This organization prevents the hydrophobic tails from coming into contact with the water, making it a low-energy, stable arrangement
  - - - High melting point, tend to be solid at room temperature
      - carbons are saturated with covalently bonded hydrogens
    - - Contain one or more C=C double bonds
      - Low melting point, tend to be liquid at room temperature
  - - - hydroxyl group in glycerol is linked to carboxyl group in fatty acid
        
        removal of a molecule by water by dehydration reaction
        
        glycerol bonds to three fatty acids
- - - - Most branched
      - Contains a-1,4-Glycosidic Bond
      - Contains a-1,6-Glycosidic linkages form branches
      - Polysaccharide composed of repeating glucose units that is produced by the cells of plants & some algea
    - - Least branched
      - Linear chains forms hydrogen bond with each other
      - Arranged in a parallel patern
        
        Bonding arrangement causes every other glucose to be upside down with respect to its neighbour
      - These sheets provide strength to plant cell wall
    - - Average branched
      - Glycogen is the storage form of glucose in humans and other vertebrates.
      - Glycogen is usually stored in liver and muscle cells. Whenever blood glucose levels decrease, glycogen is broken down via hydrolysis to release glucose monomers that cells can absorb and use.
    - - Arthropods (such as insects and crustaceans) have a hard external skeleton, called the exoskeleton, which protects their softer internal body parts.
      - This exoskeleton is made of the macromolecule chitin, which resembles cellulose but is made out of modified glucose units that bear a nitrogen-containing functional group.
      - Chitin is also a major component of the cell walls of fungi, which are neither animals nor plants but form a kingdom of their own.
- - - - Made up of two or more monomers. Monomers combined together by dehydration or condensation reaction. During the reaction, a water molecule is lost given it the name dehydration reaction.
    - - A simple molecule or one part. Can be formed through hydrolysis reaction where by a water molecule is added to a monomer when it is released from a polymer