BIO 201 Lecture Notes - Lecture 2: Amine, Monomer, Hydrolysis
4 Feb 2017
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Energy transduction (solar panels but that"s man made so nope) Evolve (yes seen in non-living viruses) (cells) Preference for 8 electrons in the atom"s outer shell. Often achieved by sharing electrons with other atoms. Carbon likes to form 4 covalent bonds. The force that holds two atoms together through a pair of shared electrons. Cl (3. 1) takes/steals an electron from na (0. 9) Cl becomes negative and na becomes positive. Negatively charged cl is attracted to positively charged na. Force that holds them together is an ionic bond. Oxygen steals some electron density from hydrogen. Example: h2o dipole pointed towards oxygen (towards the greater electronegativity) When you put something (a solute) into a liquid (a solvent) the forces of entropy favor dissolution. But the solute molecules may be held together by strong bonds/interactions (fighting entropy) And free ions and other polar molecules on their own are unfavorable/unstable. Water and other polar solvents stabilize the free ions by interacting and neutralizing them.
