The alkyl chain length distribution of a common gram positive bacterium has been examined from the perspective of their intrinsic longitudinal accordian made frequencies and their potential roles in coupling the thermal energies of cellular processes to the available ambient thermal energy spectrum. The alkyl chain length distribution is such that the corresponding longitudinal accordian mode energies are normally distributed about kT at the growth temperature of the bacteria. The relationship between this distribution and the Maxwellian distribution of energies of molecules indicates that membranes of living systems may be capable of dynamically tuning their low-frequency vibrational modes to interface the cell with its surroundings at the maximum of the available kinetic energy curve. Isotope perturbation studies and analysis of previous published studies on the effect of temperature on membrane alkyl chain length were used to support the latter observation. These results also suggest that biological membranes can control the dynamics of macromolecules inside of the cell since the broad spectrum of translational quanta from the stochastic collisions of the solvent molecules outside of the cell are converted into highly tailored, specific, oriented waves on passing through the membrane into the cell.