chapters 2-4

chapters 2-4 - Physiology Bonus opportunities o On Moodle,...

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Physiology - Bonus opportunities o On Moodle, click on name and tell her about yourself By the end of this month o VET school open house in FEB Go and type 1 page paper about what you saw and experienced at the vet school o APRIL: Health Fair In the Union Piece of paper and have people sign Blood pressure must be done Must have 4 tests done o Write review questions for a test during the semester - Add the diagrams to the notes because the test will have 3 to 11 diagrams on it - Chapter 2: The Cell o Organic means: to contain carbon To be alive it must contain carbon o TABEL 2.1 --- functional groups Be able to recognize and identify the different molecular shapes Functional Group Chemical Formula Structure Chemical Property Hydroxyl -OH -O – H Polar Sulfhydryl -SH -S – H Polar Phosphate -HPO 4 - O - O - P – OH O - Polar Carboxyl -COOH O - C Acid
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OH Amino -NH 2 H - N H Base o Organic molecules Know the 4 macromolecules Carbohydrates o Organic molecules that contain carbon, hydrogen, and oxygen Nothing else Anything else and it’s not a carb o CH 2 O o Monosaccharide: C 6 H 12 O 6 Simple sugar Glucose, fructose Glucose: Only duel that our cells burn Fructose: same formula with a different shape o Hydroxyl groups make carbohydrates polar Dehydration synthesis o Disaccharide 2 monosaccharides joined covalently Sucrose, lactose o Polysaccharide Numerous monosaccharides joined covalently Starch, glycogen (stored in liver and muscles) o Sugar = sucrose in Biology o Use “glucose” = blood sugar o “-ose” indicates carbohydrates Lipids
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o Diverse group of molecules o NO MONOMERS o Insoluble in water o Hydrophobic --- away from water o Consist primary of hydrocarbon chains and rings o Classes of lipids Triglycerides: glycerol + 3 fatty acids 3 Carbon alcohol o any other cholesterol fatty acids = Long Carbon Chain Acid o saturated fatty acids : every carbon is full of hydrogen (ignore the carboxyl group) o unsaturated fatty acids : at least one carbon will be double bonded to hydrogen which gives it a “kink” o fatty acid chains make triglycerides hydrophobic Trans Fatty Acids o H on opposite sides o Found in hard margarine and baked goods o Probably the worse fat for your body o New York City has banned TFA Monosaturated (generally better for you) o Liquid at room temp o Solidify in refrig o Ex: canola, olive and peanut oil Polyunsaturated o Liquid at room temp and when refrid o Easily combines with oxygen and becomes rancid o Ex: sesame, safflower, corn and soybean oils, salmon, herring and walnuts Proteins
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Nucleic acids Know their monomers (basic repeating unit) their roles and how they differ Saturated v. unsaturated Saturated Unsaturated No Double Bonds At least one double bond Solid at Room Temperature Liquid at Room Temperature Contrbutes to LDL or “bad cholesterol Does not contribute to cholesterol Mostly animal origin Mostly plant in origin
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This note was uploaded on 02/13/2011 for the course BIOL 2160 taught by Professor Kt during the Spring '08 term at LSU.

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chapters 2-4 - Physiology Bonus opportunities o On Moodle,...

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