BIOL100 Dowdy Week 3
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This 4 page Class Notes was uploaded by Tiffany Le on Wednesday October 1, 2014. The Class Notes belongs to Biol 100 at a university taught by a professor in Fall. Since its upload, it has received 76 views.
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Date Created: 10/01/14
b ionic bond i electrical attraction between ions o eg NaC39 image source NvvNchmbrisacuk Inna an 390 H r l i 4 E l Wit pG iii p tear 5 an 39 Er Jr D to3 I up 1 Na 31 as E ain If us Dr U mail p l f i quot39 I Viii 39 a l c 3 I l 39lf 5lv ha um E H E5 39 I39quotIquot llt la J Elli c polar covalent bond i unequal sharing of pair of e O eg H20 image source bioogy200gsuedu lrti bi 0 note in relation to charges a 6 partially positive a 639 partially negative d weakinteractions i hydrogen bond o partially positive hydrogen is attracted to partially negative atom o eg H20 image source wvvwbiologyarizonaedu lll1ri I39nge1l1 bwulildlrig pK l mtelf mnnllieul ii hydrophobic interaction o eg putting oil in water o remember hydrophobic fear of water ORGANIC organic made of carbon MACROMOLECULES 4 MAJOR TYPES a carbohydrates i mainly for energy some are for guick energy aka energy being used right away and some are stored energy aka energy being stored for later use ii some can be structural carbohydrates iii monosaccharides rings of sugar o glucose 0 simplest sugar 0 preferred sugar for cells 0 aka blood sugar 0 brain can only use glucose for energy o fructose o galactose o nbose iv disaccharides sucrose 1 glucose 1 fructose regular table sugar 0 maltose 1 glucose 1 glucose common in cereal grains and 0 beer o lactose sugar found in milkdairy O lactose intolerant when people have lack of lactase in small intestine o lactase enzyme that breaks down lactose V polysaccharides aka complex carbohydrates 0 the good carbs tbh starch how plants store glucose glycogen how animals store glucose O O O O cellulose 0 found in plants only 0 structural purpose 0 eg fibers we consume all animals but humans have an enzyme to break down energy from this we humans don t get energy or nutrients from fiber BUT eating fiber can lower risk of intestinal colon cancer and lower risk of cardiovascular disease
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