Lecture 3 notes 9-12

Lecture 3 notes 9-12 - Lecture 2 (Kussel): 9-12-07...

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Lecture 2 (Kussel): 9-12-07 Molecules of Life “Tiny differences, huge consequences” Biomolecules Sugar carbohydrate polumers Nucleotides Nucleic acid Monosaccharides The simplest of the carbs: (CH 2 O) n Aldoses: sugars with an aldehyde (has a H-C=O on the end), Triose sugars (glyceraldehyde), pentose sugars (ribose), hexose sugars (glucose, galactose) Ketoses: Has C=O in the middle, Triose, pentose, hexose sugars also Ring formation: Glucose has a linear form, an alpha form, and a beta form *MEMORIZE ALPHA & BETA FORM Disacharrides Formed by a dehydration reaction Two alpha glucose molecules come together, OH and H join, and maltose is created (1-4 linkage, first and 4 th carbon are linked) Glucose and fructose create sucrose through dehydration Polysaccharides Starch: an alpha glucose polymer (1-4 linkage) ex. Amylose and amylopectin (primarily in plants) Cellulose: a beta glucose polymer (1-4 linkage), OH is pointing up, molecules must flip
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This note was uploaded on 04/29/2008 for the course BIO Principles taught by Professor Fitch during the Spring '08 term at NYU.

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Lecture 3 notes 9-12 - Lecture 2 (Kussel): 9-12-07...

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