ZOO 3210 Study Guide - Final Guide: Body Fluid, Osmotic Concentration, Mass Diffusivity

• School: University of Guelph
• Department: Zoology
• Course: ZOO 3210
• Professor: Jim Ballantyne

Document Summary

Topics: background, terminology, methods, whole organism versus individual cells, aquatic invertebrates, aquatic vertebrates (fish, kidney function, desert animals, nitrogen excretion. Maintaining a balance of water and dissolved solutes difference from the environment. Maintaining a balance of water and dissolved solutes similar to that of water (not as common as people want you to think) Pressure exerted by the flow of water through a semipermeable membrane separating two solutions of different concentrations. An osmotically active solute (e. g. na+, glucose, amino acids. Osmotic pressure exerted by a mole of osmotically active particles. Marine invertebrates: euryhaline, wide range of salinity tolerances, stenohaline, narrow range of salinity tolerances. Tonicity: hypotonic solution, water below tonicity of cell, water rushes in, lysed (becomes so big it bursts) Methods: osmolality how to measure: colligative properties, a property numerically the same for a group of substances, independent of their chemical, there are four colligative properties, vapor pressure, boiling point, freezing-point, osmotic pressure.