Biology 3593B Study Guide - Quiz Guide: Osmotic Pressure, Tonicity, Osmoregulation
Document Summary
Define the term homeostasis: the maintenance of a constant internal environment. Understand what is meant by the term internal environment" and list the features of the body"s internal environment that are kept constant: chemical composition ions, glucose, blood ph (7. 35-7. 45, osmotic pressure (through osmoregulation, temperature. Draw a diagram showing the components of a single control system. This should include a stimulus, receptor, effector, control centre and the appropriate response mechanisms: Describe how a simple control system can minimise change through the process of negative feedback: Osmosis: passive diffusion of water from a region of low solute concentration to a region of high solute concentration. Osmoregulation: control of the water balance of the blood, tissue or cytoplasm. Hyper-osmotic: (to water), contains more solute and less water. Iso-osmotic: contains more water and less solute. Understand the structure, function and role in water balance of the mammalian kidney: Role in water balance: the kidney regulates water content in the body.
