01:119:115 Lecture Notes - Lecture 3: Covalent Bond, Carboxylic Acid, Double Bond
17 Oct 2018
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: methane - ch4: nonpolar, uncharged (nonionic, hydro phobic, can contain functional groups, replace one or more h, functional groups, key to molecular function, replace h with something else, ex. In dna, affects gene expression: functional groups summary, chemical groups that replace h in hydrocarbons, affect chemical properties of molecule, often dictate function, use figure 4. 9. Location of carbonyl group (b) figure 5. 3 (c) glucose : the most common monosaccharide (i) (ii) (iii) Needed to make beer (c) sucrose : glucose + fructose (i) Table sugar (d) lactose : glucose + galactose (i) milk sugar (ii) Broken down by lactase ; not made after infancy lactose intolerance in many people (8) polysaccharides : polymer of hundreds to thousands of monosaccharides. Two main functions in cells: storage and structure. (a) function is determined by: Position of glycosidic linkage (b) starch : plant storage polysaccharide (i) (ii) (i) Glucose subunits (c) glycogen : animal storage polysaccharide (i) (ii) (iii)
