Study Guide, Chapter 40

Study Guide, Chapter 40 - their internal environment. Key...

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BSCI105, Freshman Connection Fall 2010 Study Guide #20 I. Homeostasis Vocabulary: Regulator Conformer Homeostasis Set point Acclimatization Thermoregulation Endothermic Ectothermic Homeothermic Metabolic rate Standard metabolic rate (SMR) Basal metabolic rate (BMR) Key Concept 1: Homeostasis is the maintenance of a constant level of some factor in the internal environment of a multicellular organism. Key Concept 2: Conformers regulate their internal environment using the external environment, and are limited to matching external conditions (ectotherms). Key Concept 3: Regulators (homeotherms) use physiological control mechanisms to regulated
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Unformatted text preview: their internal environment. Key Concept 4: Homoeostasis uses feedback loops to maintain a factor near a constant set-point that is measured by physiological sensors. Key Concept 5: Homeotherms use feedback loops to control thermogenesis and heat disipation in order to maintain a constant body temperature. Key Concept 6: The energy used to maintain an organism at rest is the Basal Metabolic Rate (BMR). Key Concept 7: Bigger animals have greater overall BMRs, but on a mass-specific scale smaller animals have the highest BMR....
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This note was uploaded on 12/08/2011 for the course BSCI 105 taught by Professor Jensen during the Fall '07 term at Maryland.

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