MCDB 20 Study Guide - Midterm Guide: Roygbiv, Glyceride, Thermodynamics
11 Mar 2016
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Nitrogen - 3: electrons - determine how and whether an atom will bond with other atoms i. Versatility of carbon: easily forms bonds, key component of many molecules crucial to life i. ii. sugars proteins d. Ions are charged atoms: gain or lose an electron i. ii. atoms can bond together to form molecules. Type of bonds: covalent strongest of all bonds a, sharing of electrons. Cohesion: hydrogen bonds just strong enough to give water surface tension. At coastal areas, the ocean absorbs some heat so the climate is milder iii. low density as a solid. 1. frozen water: hydrogen bonding arranges molecules in crystalline lattice, keeping molecules slightly further apart and therefore less dense iv. good solvent. Role: energy, structural, precursor: primary fuel for organisms, aid with cell structure ii. Carbon, oxygen, and hydrogen: carbon - hydrogen bonds store a great deal of energy iii. Simple carbohydrates - monosaccharides: glucose, fructose, galactose, 3-6 carbon atoms iv.
