Proteins - Introduction to Basic Chemistry Proteins * a...

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Introduction to Basic Chemistry Proteins * a biological polymer composed of amino acid monomers * major classes of proteins * structural- hair, silk of spiders, fibers that of tendons * contractile- provide muscular movement * defensive- antibodies which fight infection * transport- hemoglobin which carries oxygen * hormones * enzymes- serves as a chemical catalyst (an agent that changes the rate of a chemical reaction without being changed into a different molecule in the process. * Promote and regulate all the chemical reactions in the body A Protein’s Specific Shape Determines its Function * a protein consist of one or more protein chains folded into a unique shape * a proteins specificity is dependent on its shape * most proteins are globular, although structural proteins are long and thin (fibrous) Denaturation * the process that alters the three dimensional structure * heat * salt * pH Temperature and Enzyme Activity Enzymes * Catalyst- Substances that speed up chemical reactions by increasing the frequency of
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This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Proteins - Introduction to Basic Chemistry Proteins * a...

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