Water, weak bonds, and the generation of order out of chaos
-Transient chemical interactions form the basis of biochemistry and life itself.
2.1 Thermal Motions power biological interactions
-Brownian motion: movement of particles due to random fluctuation of the energy
content of the environment, thermal noise. E.g. WATER
2.2 Biochemical interactions take place in an aqueous solution
-hydrogen bonds are the most common in biomolecules.
2.3 Weak interactions are important biochemical properties
-noncovalent: ionic bonds, hydrogen bonds, van der waals interactions.
-electrostatic interactions/ionic bonds/salt bridges: interactions between distinct
electrical charges on atoms. Distance for maximal bond strength is: 3 Angstroms.
-Hydrogen bonds: longer than covalent bonds, can be disrupted by water, therefore
strongest in the absence