BIOM 2000 Study Guide - Midterm Guide: Lipid Bilayer, Membrane Potential, Blood Cell
28 Sep 2017
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Document Summary
Levels of structural: atomic, cellular, tissue, organ, system, organism. The tendency towards a stable equilibrium between interdependent elements in physiological processes. Lungs, kidneys, and gi tract are portals for movement of chemicals between environments. Heat generated by metabolism is lost through skin and mucous membranes. Homeostatic control relies on: constant monitoring of blood composition, responding to changes in blood composition. Communicates through neural (fast) and hormonal (fast and slow, memory) control systems: receptor: (sensor + integrator, effector, control center. Shuts off original stimulus or reduces intensity. Elements: 96% of the body is made up of carbon, hydrogen, nitrogen, oxygen. Inorganic compounds: lack carbon, tend to be simpler compounds, include water, salts and some acids/bases. All physiological processes take place in an aqueous medium. Easily dissociate in water into electrically charged ions. A balance of electrolytes is essential to all physiological processes. Cytoplasm of insulin-producing cells (insulin is released and stimulates glucose uptake in blood)
