1 / 12

Lipids

Lipids. Packet #10 Chapter #5. Introduction. Contain carbon, hydrogen and oxygen Does not contain as many oxygen molecules as carbohydrates Formed via a condensation reaction and broken apart via hydrolysis. Functions of Lipids. Energy Storage Fats are stored for future energy use

minda
Download Presentation

Lipids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lipids Packet #10 Chapter #5

  2. Introduction • Contain carbon, hydrogen and oxygen • Does not contain as many oxygen molecules as carbohydrates • Formed via a condensation reaction and broken apart via hydrolysis

  3. Functions of Lipids • Energy • Storage • Fats are stored for future energy use • Structural Support • Phospholipids • Critical component of the cell membrane • Insulation • Especially useful where hair and feathers are of little use • Example • Underwater • Blubber in whales • Waterproofing • Waxes • Leaf cuticles are made of waxes • Secreted from sebaceous glands of the skin

  4. Components of Lipids • Lipids are composed of two parts • Glycerol • Head • Hydrophilic • Fatty acids • Tail • Hydrophobic • Some lipids have one of the fatty acids replaced by phosphoric acid • These are called phospholipids • Very important component of the cell membrane

  5. Glycerol A syrupy, sweet, colorless or yellowish liquid, C3H8O3, obtained from fats and oils as a byproduct of saponification Glycerol is used as a solvent, an antifreeze, a plasticizer, a sweetener Glycerol is used in the production of dynamite, cosmetics, liquid soaps, inks, and lubricants.

  6. Fatty Acid Tails Chain of carbon and hydrogen joined together.

  7. Lipids II • Lipids can be categorized as fats or oils. • Fats • Solid at room temperature • Oils • Liquid at room temperature • Saturated Fats vs. Unsaturated Fats • Saturated • A molecule that has only single bonds • Found largely in animals • Unsaturated • A molecule that has one or more multiple bonds • Largely comes from plants • Better for one’s health because the ”kinks” prevent the fat molecules from packing closely together. • Helping reduce heart disease

  8. Kinks

  9. Phospholipids

  10. Phospholipids • Found at the surface of cells • Four main components • Glycerol • Fatty acids • PO4 {Phosphate/Phosphate Group} • Organic molecule

  11. Phospholipid Bilayer Phospholipidbilayer is a series of phospholipids that are found at the surface of cells and helps make up the cell membrane.

  12. Phospholipid Bi-Layer

More Related