MCAT Chemical & Physical Foundations Question of the Day

Bernoulli's principle: as fluid speed increases, pressure decreases, reducing tissue oxygen consumption.

Diffusion time scales with the square of distance ($t \propto L^2$), so reducing thickness sharply shortens equilibration time.

Beer-Lambert law: absorbance increases linearly with pathlength, ensuring uniform excitation in thicker slices.

Henry's law: gas solubility is proportional to partial pressure, so thinner slices increase oxygen solubility.