BSC 197 Lecture Notes - Lecture 26: Detoxification, Thermoregulation, Capillary
29 Dec 2016
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Document Summary
Like at the molecular level, at higher levels form determines function. Physiology: the study of biological function: integrates all levels of organization from molecules to the whole organism, much of physiology is studied at the cell or tissue level. Homeostasis: maintaining steady state of health: optimal range of physiological conditions, humans- 37 c, ph 7. 4, salt and glucose concentrations, etc. Systems in place to keep these values in optimal range. Homeostasis is maintained in each system by a mechanism similar to thermostat. Monday, november 14, 2016: no action when in optimal range, corrective action when falling out of range. Optimal conditions may vary over time: circadian rhythm is roughly 24 hour cycle, humans have changes throughout the day. Acclimatization may also occur where physiology changes with increased exposure to conditions: high altitude, extended dark, cold. Enzymes in cells have optimal conditions in which they work: remember lab 1 and catalase. Temperature is key component to determine 3d shape of protein.
