1.4

• A polypeptide, the primary structure of the protein, consists of a specific order of amino acids and determines overall shape.
• The Primary structure of Protein consists of long chain of amino acids ( polypeptides ).
• Functions of Lipids:

  1 - Long term energy storage

  2 - Structural Component

  3 - Heat Retention ( Insulation )

  4 - Communication between cells

  5 - Protection
• State the function of the following Lipid:

  Fats:

  • Long-term energy storage ( animals )
  • Insulation
• State the function of the following Lipid:

  Oils:

  • Long-term energy storage ( plants )
• State the function of the following Lipid:

  Phospholipids:

  • Structural Component
  • Found in cell membrane
• State the function of the following Lipid:

  Steroids:

  • Structural Component
  • Communication
  • Sex hormones
• State the function of the following Lipid:

  Waxes:

  • Protection of plant and prevent water loss
• Lipids are nonpolar macromolecules that have no real monomers.
• The Phospholipid structure is made up of:

  1 - Phosphate group 2 - Glycerol 3 - Fatty Acid
• The plasma membrane is described as a fluid mosiac model, mosiac because it is made up of many components.
• Kinks across the tail keep the plasma membrane fluid throughout a range of temperatures.
• The Triglyceride structure is made up of:

  - Glycerol - 3 Fatty Acid
• Steroids structure is made up of: - four fused carbon rings
• Cholesterol keeps fluidity in cell membrane as temperature changes.
• Waxes are long chains of fatty acids connected to carbon chains.