BIOL 430 Lecture Notes - Lecture 7: Electrochemical Gradient, Extracellular Fluid, Aquaporin
Document Summary
Every process is really a variation on these: Mass balance and mass flow integration of systems. Whatever we take in we must either metabolize it or excrete it this takes. Maintenance of a state of homeostasis or relatively constant internal environments. Recall: internal environment comprised of extracellular fluid compartment which is comprised of plasma and interstitial fluid. Differences in solute distribution in the fluid compartments give rise to chemical and electrical gradients. Gradients underlie the function of most cells and thus organ systems. Lots of na out of the cell. Lots of k inside of the cell. Movement of material or biological transport within and between body fluid compartments chemical and electrical dis-equilibrium. Is essential for communication and coordination of physiological responses. Electrochemical gradient diffusion ions move toward opposite charge (areas of. Transport mechanisms and selective permeability of cell membranes aid movement and charge on surface internal and external) thus, underlie chemical gradients.
