AP Biology Full Exam Review|A+ Graded

AP Biology Full Exam Review|A+ Graded Properties of Water -polar molecule -capillary effect (cohesion and adhesion, transpiration) -high specific heat -high heat capacity (heat sink-protects aquatic life from large fluctuations in temp) -high heat of vaporization (sweat cools us) pH -log[H+] pOH -log[OH-] pH + pOH = 14 pH scale below 7 is acidic, above 7 is basic, 7 is neutral BAAD "bases accept, acids donate" protons organic molecules any carbon containing compounds hydrocarbons -consist only of hydrogen and carbon -always nonpolar/hydrophobic -carbon is tetravalent (can form 4 bonds) isomers Two different molecules that have the same chemical formula, but differ in the placement of their atoms methyl CH3; nonpolar; turns off genes hydroxyl OH-; polar; alcohol carbonyl C=O; either end carbon is aldehyde and other carbon is ketone