BIOL 150 Chapter Notes - Chapter 40: Reabsorption, Straight Arterioles Of Kidney, Collecting Duct System
Document Summary
Electrolyte (compound that dissociates into ions when dissolved in water) Diffusion (uncharged solutes move down their concentration gradients) Osmosis (movement of water down its gradient across semipermeable membrane) Osmolarity (concentration of solutes in solution, measured in osmoles per liter) Osmotic stress occurs when concentration of dissolved substances in cell or tissue is abnormal. Osmoregulation (process by which organisms control concentration of water and solutes in their bodies) Isomotic (solute concentrations inside and outside the animal is equal) Hyperosmotic (solution outside body has higher solute concentration than solution inside) Uric acid (white, paste-like substance that you have probably seen in bird feces) *toxic to animals because it binds to na. Hypothesis that there is freshwater version of classical chloride cell evidence (sea bass and salmon): Osmoregulatory cells may be in different locations. The orientation of key transport proteins flip Cuticle (combination of chitin, protein, and wax) *responsible for water and electrolyte balance as well as excretion of nitrogenous wastes*
