BIOL 4087 : BIOL 4087 Exam 1
Document Summary
Biol 4087 exam 1: noncovalent interactions, hydrogen bonds, electrostatic interactions, van der waals interactions. Ionization of water: ph, buffers, most proteins like to be in a very narrow ph range (blood is, henderson-hasselbalch equation, used for ph problems. Water: water is the solvent of life, water is 60-75% of weight of most organisms (don"t have to know number, determines the shape and the interactions of biological molecules, water is a polar molecule, fig. 1-10: sweet spot where there is an attraction and no repulsion from the electron cloud, geckos have 500,000 fine hairs on their toes, each hair has 100s of projections which are called spatulae. 3: gecko puts foot on the wall and little hairs go into the imperfections on the walls which forms van der waals interactions. Ionization of water: water dissociates into a proton and a hydroxide, keq = [h+][oh-]/[h2o] 4: buffers are important because the shape of proteins and function of enzymes are dependent on them.
