BIOC 100A Lecture Notes - Lecture 4: Benzene, Micelle, Membrane Lipids

• School: UCSC
• Department: Biochemistry and Molecular Biology
• Course: BIOC 100A
• Professor: Michael Stone

Document Summary

Follow the water - where there is water there is a good chance of life. H(+)side of dipole and o(-)side of dipole. H-bonds are dynamic (break and reform quickly) Entropy of water is important for things like the hydrophobic effect. G h2o(s) -> g h2o(l) < 0 ( g goes down so energy is going up) S(s->l) > 0 very positive (becomes more disorganized) Energy/strength is dependent on the arrangement of h-bond donor and acceptor. Water is polar = polar molecules readily dissolve in water. Amphipathic = has both hydrophilic and hydrophobic characteristics. Water can shield the charged solutes from each other. = property or construct related to the behavior of unshielded particles. Micelle = structure of lipid with tails pointing inward to a single point forming a sphere-like shape. Lipid bilayer = membrane formed by two layers of the lipid with tails facing inward with heads on surface on either side.