bild lecture week 3.1

Bild lecture week - 1 Membranes a Phospholipid bilayer amphpathic = hydrophil/phobic head/tail b Tails in fatty acid is kinked b/c of double bonds

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1.) Membranes a. Phospholipid bilayer: amphpathic = hydrophil/phobic head/tail b. Tails in fatty acid is kinked b/c of double bonds. Carbons and hydrogens. b.i. Mosaicism: membrane is not homogenous b.ii. Fluidity c. In golgi, polysacchirides can be added onto polynucleotides. 2.) Passive transport: diffusion across membrane 3.) Diffusion can offur with help of protein aka facilitated. 4.) Active transport: against gradient. 5.) Volatege across membrane b/c of highly protonated exterior. Pump creates membrane potential. With help of protons, sucrose can come through. Practice eam: -Know significance of each functional group -dehydration synthesis. Anabolic, requires energy. -Breaking = hydrolysis, catablolic. -carbs monosachrride: monosacchriide: glycosidic, 1,2 + 1,4 Polypetp: AA- peptides Nucleic acide – nucleotide. Has most nitrogen. Phosphodiester. C8H16O8 = carbs C18C36O2 = lipid, steroid. C18H36O6: triglyceride 4. Name two different polymers composed primarily of glucose and where they are used. (2 POINTS). Starch: energy storage for plants Glycogen:m animals Cellulose: structure Chitin: exoskeleton. Alpha form of glucose = OH is below ring. In starch, all glucose = alpha. = helical. Structure sugar makes in cell = ring Phospholipid bilayer = 2 fatty acids, third = phosphate group. Lipids have 3 fatty acid and glycerol Proteins and Nucleic acids
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This note was uploaded on 01/10/2012 for the course BIOLOGY BILD 1 taught by Professor Traver during the Spring '10 term at UCSD.

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Bild lecture week - 1 Membranes a Phospholipid bilayer amphpathic = hydrophil/phobic head/tail b Tails in fatty acid is kinked b/c of double bonds

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