chem exam 4

5 classes of lipids based on function

1. energy storage lipids

2. membrane lipids

3. emulsification lipids

4. messenger lipids

5. protective coating

good fatty acids

Monounsaturated- dont pack as well, move through blood easily

polyunsat. (good and bad)

Hydrogen bonds

hydrogen has a partial + while being bound to something negative and has an ATTRACTION to something electronegative

denoted via dotted line

Bad fatty acid

Saturated fatty acids- pack tightly, don’t move well through blood

polyunsat.- good and bad

naming fatty acids

Omegas start opposite CA

rest of FA start with the CA

saturated fatty acid

All single bonds

monounsat fatty acid

one C-C double bond

Polyunsat FA

2 or more C-C double bonds

Types of reactions in FA

hydrolysis

hydration

oxidation

Cholesterol and cell membrane

cholesterol regulates fluidity of the cell membrane

Facilitated transport

high to low concentration with help from a membrane protein

NO ATP

passive transport

high to low concentration with no aid

NO ATP

active transport

Low to high concentration with protein pumps

USES ATP

4 parts of the basic amino acid

• center carbon

• amino acid

• carboxylic acid

• side chain “R”

non polar side chains

n