Macromolecules

Macromolecules - 12/30/2007 1 Macromolecules Carbohydrates:...

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Unformatted text preview: 12/30/2007 1 Macromolecules Carbohydrates: Polymers of Hydrated (-OH) Carbon Proteins: Polymers of amino acids Nucleic Acids: Polymers of Nucleotides Lipids: No common chemical structure Lipids Defn: A molecule that is insoluble in water. 12/30/2007 2 Experimental design using assays Experimental Design s Purpose of experiments: to show x causes y. s Basic design: manipulate x, measure y s Simplest design: s Experimental condition: x present s Control condition: x absent Example of simple experiment s Purpose: show light causes plants to grow s x= sunlight, y= growth s Experimental condition : expose plant to light s Control condition : put plant in dark s Measure height of plant with ruler = y Assays s Assay- An indirect method to test for the presence or quantity of something. Two Basic Types of Assays s Quantitative Results are a number s Examples s CBC, IQ test s Qualitative Results are descriptive (yes/no, blue/brown, present/absent) s Examples s Blood type, Pregnancy s Biuret, Benedicts, Iodine and paper test Qualitative assay results s Positive result- What youre looking for is present. Represented as +. s Negative result- What youre looking for is NOT present. Represented as -. s Ambiguous- Results fall in neither category neatly. Represented as +/-. 12/30/2007 3 Experimental design using assays s Whenever possible, must incorporate two...
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This note was uploaded on 03/08/2010 for the course BIOL 100L taught by Professor Claassen during the Spring '08 term at UMBC.

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Macromolecules - 12/30/2007 1 Macromolecules Carbohydrates:...

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