Homeostasis - Homeostasis and Water Balance BIOL 1407...

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Homeostasis and Water Balance BIOL 1407
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Homeostasis Tendency to maintain a relatively constant internal environment despite changes in external environment Crucial for survival
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Why is Homeostasis Crucial? Proper cell function depends on specific environmental conditions within internal environment: Fluid that surrounds cells
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Why is Homeostasis Crucial? Membrane functions Fluidity is affected by temperature Membrane potential (charge) affected by chemical balance
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Why is Homeostasis Crucial? Proteins function within limited chemical range Temperature pH
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Integration Center Stimulus Effector Response
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Homeostatic Range Variable controlled within an acceptable range Minimum and Maximum Example of Temperature Fluctuations in Adult Male Mice (a) and Adult Male Humans (b): http://www.ehponline.org/members/2002/110p61-65frank/fig2.jpg
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Conformers vs. Regulators
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This note was uploaded on 10/02/2011 for the course BIOL 1407 taught by Professor Lisagloyna during the Spring '09 term at Austin Community College.

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Homeostasis - Homeostasis and Water Balance BIOL 1407...

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