lipids - Chap 15 Lipids Lipids- Greek lipos meaning fat or...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chap 15 Lipids Lipids- Greek lipos meaning “fat” or “lard” -a class of compounds that are soluble in non-polar solvents. Non-polar solvents such as ether, chloroform, acetone. 1. Fatty Acids- Long chain carboxylic acids, insoluble in water. In biology 12-18 carbons most common. fatty acid long-chain alcohol WAX Five major types 1. 2. Triglyceride, fat or oil glycerol fatty acid fatty acid fatty acid fatty acid fatty acid 3. Phospholipid PO 4 amino alcohol 4. Glycolpid sphingosine sugar fatty acid 5. Steroid OH O
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Saturated acids- no double bonds- Monounsaturated- 1 double bond Polyunsaturated- 2 or more double bonds, most double bonds are cis. Show table 15-2. Essential fatty acids- body can’t synthesize, usually have more than 1 double bond. Must eat them to get them. Most people are not deficient. Ex. Linoleic acid, linolenic acid B. Saturated fats- animals- better packing ability so have a higher mp, solids at room temp, such as fat, milk butter, cheese. Research shows that polyunsaturated fats are better. Saturated fats have been associated with atherosclerosis and heart disease. Except for Eskimos that eat omega-3 acids (first double bond at 3, vegetable oils are omega-6) omega-3 in fish tens to prevent blood platelets to stick together. Can possibly lead to increased bleeding time. C. Unsaturated fats- plants. Cis bonds so molecule can’t pack as well, higher mp, liquids at room temp. olive oil, peanut oil. Show overhead. 2.Waxes, Fats and Oils. A. Wax
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 10

lipids - Chap 15 Lipids Lipids- Greek lipos meaning fat or...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online