HNRS 1007 Lecture Notes - Lecture 1: Pearson Education, Ribosome, Colloid
Document Summary
Biological molecules: covalent bonds, ionic bonds in solution, hydrogen bonds, van der waal"s interactions, hydrophobic interactions, covalent bonds are one of the strongest bonds, non-covalent bonds stabilize the shapes of large molecules. Water: the molecule that supports all of life: water is the biological medium/solvent on earth, most cells are surrounded by water, and themselves are about 70-95% water. Acids and bases in water: an acid is any substance that increases the [h+] concentration of a solution, a base is any substance that reduces the [h+] concentration of a solution. The formation of bonds with carbon: carbon - 4 valence electrons, carbon chains form the skeletons of most organic molecules, silicon can make things similar to carbon, but very weak. Drug enantiomers: two enantiomers of a drug may have different effects, shows that subtle changes make a difference, usually only one isomer is biologically active.
