Cards (24)

  • What are lipids soluble in?
    Organic solvents like alcohols
  • What are the two types of lipids?
    Saturated and unsaturated lipids
  • What characterizes saturated lipids?
    No carbon-carbon double bonds
  • What characterizes unsaturated lipids?
    Contain carbon-carbon double bonds
  • Why do unsaturated lipids have lower melting points?
    Weaker intermolecular forces due to kinks
  • What is the state of saturated fats at room temperature?
    Solid
  • What is the state of unsaturated lipids at room temperature?
    Liquid
  • What makes lipids waterproof?
    Hydrophobic fatty tail
  • Why are lipids good for storage?
    Non-polar and insoluble in water
  • What is the thermal insulation property of lipids?
    Conduct heat slowly
  • What are triglycerides made of?
    One glycerol and three fatty acids
  • What type of bonds join fatty acids in triglycerides?
    Ester bonds
  • What are triglycerides used for?
    Energy reserves in cells
  • What is the correlation between saturated fats and cholesterol?
    High saturated fats increase blood cholesterol
  • What is the structure of triglycerides?
    One glycerol and three fatty acid chains
  • What bond forms between glycerol and fatty acids in triglycerides?
    An ester bond
  • What Is a triglyceride made up of?
    Three hydrophobic fatty acid chains attached to hydrophillic glycerol via a condensation reaction
  • how is a glycerol and the three fatty acids bonded in a triglyceride?
    By 3 condensation reactions, producing 3 molecules of water forming 3 Ester bonds
  • Saturated fats have complete hydrogens, carbon carbon single bonds
  • Unsaturated fats do not have complete hydrogens, they have at least one minimum carbon carbon double bond
  • Fats have a carbon carbon bond and a high melting point, they can be compact easily, they are solid at room temperature, they are from animal sources, they are generally unhealthier
  • Unsaturated fats have a carbon carbon double bond they have a lower melting point and they are less dense due to the kinks and they are liquid at room temperature, they are from vegetable sources like vegetable oil
  • Lipids supply more energy per unit mass
  • In lipids: There are 3 condensation reactions, 3 ester bonds, 3 water molecules produced.