Diffusion Vs Distribution

Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration, driven by the kinetic energy of the molecules themselves. This process occurs until there is an equal concentration of substances in both areas, achieving equilibrium. In biological systems, diffusion is crucial for the transport of gases, nutrients, and waste products across cell membranes, facilitating essential metabolic processes and maintaining homeostasis within organisms.

Distribution refers to the process by which substances are dispersed throughout a biological system, such as the human body. Once absorbed into the bloodstream or interstitial fluids, nutrients, hormones, and drugs are distributed to various tissues and organs where they exert their effects. This distribution is influenced by factors such as blood flow, the permeability of cell membranes, and the binding affinity of substances to proteins, all of which play a vital role in ensuring that cells receive the necessary components for optimal function and survival.