lipids

• organic substances that include fats and fatlike substances, such as phospholipid, wax, and steroids.

  Lipids
• These are compounds that generally nonpolar, which means they are usually hydrophobic.

  Lipids
• 4 main types of lipids

  Fats and Oils, Phospholipids, Steroids, Waxes
• have no double bonds

  Saturated fatty acids
• solid at room temperature
• • solid at room temperature
• solid at room temperature

  Saturated fatty acids
• mostly found in animals

  Saturated fatty acids
• Lard, margarine, and butter, etc.

  Saturated fatty acids
• low melting point

  Unsaturated fatty acids-
• liquid at room temperature

  Unsaturated fatty acids-
• commonly found in plants

  Unsaturated fatty acids
• x. Corn oil , vegetable oil, olive oil, etc

  Unsaturated fatty acids
• are important components of cell membranes.

  PHOSPHOLIPIDS
• S are very different from fats and phospholipids in that they are composed of four fused rings.

  STEROIDS
• They are critical component of cell membranes and play a role in cell transport, cell recognition, and cell communication.

  STEROIDS
• are the most common steroid

  Cholesterol-
• Cholesterol-

  Bile salts • Sex hormones • Vitamin D, etc
• , also known as blood fats, circulate in the bloodstream along with cholesterol.

  Triglycerides