Lipids LONG TERM ENERGY STORAGE. What elements are lipids composed of? 1. Carbon (C) 2. Hydrogen (H) 3. Oxygen (O) Top left hand corner of your notes.

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Presentation transcript:

Lipids LONG TERM ENERGY STORAGE

What elements are lipids composed of? 1. Carbon (C) 2. Hydrogen (H) 3. Oxygen (O) Top left hand corner of your notes Lots of Hydrogen Very Little Oxygen

Function in living organisms Top right hand corner of your notes 1. Energy Storage in animals Once all carbohydrates have been used we begin to burn lipids for energy.

Function in living organisms Top right hand corner of your notes 2. Structural support in ALL cell membranes. Phospholipids

Function in living organisms Top right hand corner of your notes 3. Messengers Steroids are lipids that carry messages through the blood stream.

Lipid Structure Bottom Lipids have no true monomers!!!

Lipid Structure Bottom 1 Glycerol 3 Fatty acids

Lipid Structure

Types of lipids 1. Fats 2. Oils 3. Waxes Top left hand corner on back Lipids are: Lipids DO NOT dissolve in WATER

Types of Fatty Acids 1. Saturated Fatty Acids NO DOUBLE BONDS between carbons (C)!! (saturated with Hydrogen) Usually solid at room temperature, Most come from animal products. Top right hand corner on back Can you think of some examples?

Types of Fatty Acids 2. Unsaturated Fatty Acids Have Have double bond(s) in the carbon chain and are not full (saturated) with hydrogen. Most unsaturated fats are liquid at room temperature (oils) Usually come from plants Top right hand corner on back Can you think of some examples?

Phospholipids Found in cell memberanes