BIOL 1201 Lecture Notes - Lecture 4: Mashed Potato, Carboxylic Acid, Amine
Document Summary
Polysaccarides: many sugars: many sugars joined together, 3 main: Lots and lots of chains of cellulose that attach together to make a fiber/ microfbril. Types of lipids (carbon, lots of hydrogen, and few oxygens) energy: fatty acids a. i. Hydrocarbon chain with a carboxyl group on one end a. ii. A glycerol molecule with 3 fatty acid chains attached b. ii. 3 carbon molecule with hydroxyl group on the ends b. iii. These are saturated or unsaturated- variety: phospholipids c. i. A glycerol molecule with 2 fatty acid chains and a phosphate group attached c. ii. Glycerol back bone, two fatty acid chains sticking off, and a nitrogen ring (phosphate group) c. iii. One side of the molecules is polar and the other in nonpolar, but the molecule as a whole is considered nonpolar c. iii. 1. Allows the membrane to self-assemble: steroids d. i. The first three share something in common but steroids are the only that doesn"t contain it. d. ii. 4 carbon rings with various side groups d. iv.
