Lecture 9 9-30-10

Lecture 9 9-30-10 - Review Session Tomorrow (Friday)...

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Review Session Tomorrow (Friday) 2:30-3:30 Bartlett 123 Cook College
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Lecture 9 Lecture 9 30 September 2010 30 September 2010
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Factors that Affect Metabolic Rate
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Pervasive Importance of Temperature (see Optional Readings)
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Pervasive Importance of Temperature (see Optional Readings)
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Pervasive Importance of Temperature (see Optional Readings)
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Thermal Relations Mode of thermoregulation: Endothermy Ectothermy Stability of body temperature Homeothermy Poikilothermy Temporal and regional variation Heterothermy
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Homeothermy versus Poikilothermy Endothermy versus Ectothermy Endothermic homeothermy Thermal physiology is inseparable from metabolic physiology.
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Homeothermy versus Poikilothermy Endothermy versus Ectothermy Endothermic homeothermy Thermal physiology is inseparable from metabolic physiology.
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Effects of Temperature on Physiological Rates • Why are metabolic rate, other physiological rates, and the rates of enzymatic reactions so strongly dependent on temperature? •T h e rates of enzymatic reactions are doubled or tripled by 10 ° C increments in temperature Q 10 = (k 2 /k 1 ) 10/(t 2 -t 1 ) , where t 2 > t 1 http://www.csupomona.edu/~seskandari/physiolo gy/physiological_calculators/Q10.html
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Effects of Temperature on Physiological Rates • When two temperatures are exactly 10 ° C apart: Q 10
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Lecture 9 9-30-10 - Review Session Tomorrow (Friday)...

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