StudentLecture_19

StudentLecture_19 - LECTURE 19 11/2/2010 Finish Colligative...

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LECTURE 19 11/2/2010 Finish Colligative Properties, Start biochemistry Reading for this week: Biochemistry Interchapter, pp 497-512 ; page 473, 476 Lab this week: Preparation of Luminol, (Make your own personal lightening bug) Chapter 8 HW as usual
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Chemistry and Biochemistry Where we’ve been: ionic and covalent bonding molecular shape intermolecular forces organic functional groups Where we’re going: Types of biochemical molecues Lipids and fats Sugars and carbohydrates Amino acids and proteins Nucleotides, DNA, and replication How bonding and IMF’s determine shape How shape determines biological function
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Esters Replacing a O-H bond in a carboxylic acid with a O-C bond produces an ester. carboxylic acid ester
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Lipids: fats Flipped structure Fats are esters of carboxylic acids ( fatty acids ) & glycerine CH 2 (OH)CH(OH)CH 2 (OH)
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Which is a trans fatty acid? A B C CPS Question #3 O OH
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Metabolic studies have shown that trans fats have adverse effects on blood lipid levels--increasing LDL ("bad") cholesterol while decreasing HDL ("good") cholesterol. This combined effect on the ratio of LDL to HDL cholesterol is double that of saturated fatty acids. Stearic acid ( saturated ) O OH
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Zero calorie fat: Olestra (Olean ) Glycerine Stearic Acid Sucrose fat Olestra
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Issues with Olestra Mineral oil is one product in the distillation of petroleum to produce gasoline and other products from crude oil. It is a
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This note was uploaded on 01/30/2011 for the course CHEM 116 taught by Professor Stevenson during the Spring '08 term at Purdue University.

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StudentLecture_19 - LECTURE 19 11/2/2010 Finish Colligative...

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