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sequence of amino acids in a protein, determined by inherited genetic information. Is like the order of letters in a word |
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coil called alpha helix & folded structure called beta pleated sheet |
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Its the overall 3 dimensional shape. Determined by interaction between K grp, rather than interaction between back bone Disulfide bridge(strong coval bond) reinforce proteins has H+ bonds, ionic, hydrophobic interaction & van der Waals |
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2 or more polypeptide chains form 1 macromolecule |
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structural and mechanical, enzymes, hormones, immune fxn, fluid balance, acid base balance |
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Pepsin: digests proteins, Activated by HCl HCl: unfolds protein, denatures protein |
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Removing Nitrogen group(amino group). It's converted to urea in the liver & passed thru blood stream for excretion in urine |
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Complete vs. Incomplete Protein |
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Complete: animal, soy, supplies all essential amino acids Incomplete: mostly plant, low in 1 or more essential amino acids |
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Vegans & Vitamin Supplements |
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vegan diet is low on zinc, vitamin D, Ca, and vitamin B12. They get more phytates (binding minerals) that make them less available for absorption. Get protein by eating complementary plant proteins (rice, beans) |
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excreted as proteins are recycled or used, we use the balance of nitrogen to evaluate whether or not a person is consuming enough protein If nitrogen input=nitrogen output, nit balance N intake> N output, positive N balance (pregnant woman,growing kids, illness recovering) N intake< output, neg N balance (staving, weight loss diets, illness, infection) |
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Kidney Function, Mineral Losses, Obesity, Heart Disease, Cancer, Gout hypertension and atherosclerotic plaques in heart, increase in fat concumption |
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