BIOB34H3 Study Guide - Midterm Guide: Brown Adipose Tissue, Viscosity, Activation Energy
24 Oct 2015
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Document Summary
Study of how animals work: atoms of animal bodies are in dynamic exchange with the atoms in their environment through life. Molecular constituents of an individual"s body break down and are rebuilt: organization, set of conditions experienced by cells within an animal"s body. Homeostasis: control system reinforces deviations of a controlled variable from its set point. Less common: first to recognize the stability of conditions that humans maintain in their blood and tissue fluids. Revealed most cells experience relative constancy of temperature, osmotic pressure, etc because various organs and tissues regulate these properties at consistent levels in the body fluids. Constancy of the internal environment is the condition for free life: coined the term for homeostasis, short-term changes in the physiology of individual animals. Changes that individuals exhibit soon after their environments have changed. Reversible: long-term changes in the physiology of individual animals. Changes that individuals display after they have been in new environments for days, weeks, or months.
