Lipids

1
Lipids

• Large non-polar organic molecules that do not
  dissolve in water.

2
Lipids Overview

• They are large organic molecules
• They contain carbon, hydrogen, and oxygen
• Stores fats as long term energy
• Contains lots of calories 2x the amount of
  carbohydrates
• Building blocks of lipids 3 Fatty acids and one
  glycerol a lipid

3
Present Elements

• C, O, H (carbon, hydrogen, oxygen)

Carbon Atom
Hydrogen Atom
4
Building Blocks The Monomer of a lipid is a
glycerol and 3 fatty acid molecules

• Consists of 3 fatty acids glycerol also know as
  triglycerides (polymer)
• Glycerol
• 3 Fatty Acids

5
Functions of a lipid

• Stores energy long term
• Forms membranes around our cells called a
  phospholipids bilayer
• Lipids provide insulation in your body and they
  protect your organs
• Steroids and Hormones like testosterone,
  progesterone and estrogen.
• Cholesterol is a lipid it is important in cell
  membranes

6
Function Pictures
Lipid Membrane
Example of a hormone
Insulation
7
More facts Examples

• A lipid is also known as a Polymer
• Also known as triglyceride, fat, oil, wax
• Types of lipids
• saturated fat
• Unsaturated fat
• Polyunsaturated fat
• Trans fat
• Waxes or oils
• Cholesterol
• Hormones estrogen/testosterone
• Lipids are high in calories because they yield a
  lot of ATP when broken down.

8
Examples of the types Lipids
saturated
Trans fat
unsaturated