lipids/fats

    Cards (10)

    • lipids are a concentrated source of energy & provide fuel for aerobic respiration
    • phospholipids for the structural framework of cellular membranes
      • stored lipids provide insulation
      • increased body fat levels in winter reduce heat losses to the environment
    • hydrophilic dissolve in water
    • hydrophobic doesn't mix with water
    • saturated fatty acids are solids at room temperature e.g. butter
    • unsaturated fatty acids are oils & tend to be liquid at room temperature
    • saturated fatty acids contain maximum amount of hydrogen atoms
      unsaturated fatty acids contain some atoms that are double bonded & not fully saturated with hydrogen
    • neutral fats
      • make up fats & oils found in plants & animals
    • waxes
      • similar structure to fats & oils
      • formed with a complex alcohol instead of glycerol
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