BIOL 102 Lecture Notes - Lecture 2: Glycosidic Bond, Proteome, Protein Folding
28 Apr 2016
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Document Summary
Chapter 3: organic molecules proteins lipids carbohydrates nucleic acids. 4 electrons in outer shell, needs 4 to fill shell, can make up to 4 bonds can form polar or non-polar bonds nonpolar (eg. hydrocarbons) are poorly water soluble polar more water soluble. Isomers group of atoms with special chemical features brings their specific structure and function each type exhibits the same properties in the molecule it"s found in compounds may have more than 1 functional group. Identical molecular formula but different structures and characteristics. Structural isomers: contain the same atoms but in different bonding relationships (eg. oh in different place) Stereoisomers: identical bonding relationships, but the spatial positioning of the atoms differs in the two isomers: geometric isomers: positioning around double bond (cis/trans, enantiomers: mirror image of another molecule (l/d) Pentoses: ribose (c5h10o5), deoxyribose (c5h10o4) important for dna & rna. Can be ring or linear ring forms in aqueous solutions. Link two monosaccharides via dehydration reaction - remove water.
