Biology 2601A/B Study Guide - Reactive Oxygen Species, Rete Mirabile, Superoxide Dismutase
22 Apr 2013
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Document Summary
Ectotherms: logm = log(a) + ntb, q10 = rt/r(t-10, substrate vs reaction rate. Changes in km: metabolic rate determined by km, processes governed by temperature, thermal inertia, temperature limits. Lecture 3: temperature ii endothermy in mammals and birds. Ambient temperature vs. metabolic rate: thermoneutral zone (tmz) Producing heat: vasoconstriction, shivering thermogenesis, nonshivering thermogenesis. Ucp1: futile cycling, countercurrent heat exchange. Regional heterothermy: countercurrent heat exchange at appendages. Behavioral thermoregulation in plants: radiation from sun absorption variability and leaf color/angle, convection leaf shape, latent heat exchange transpiration, metabolism futile cycling. Behavioral thermoregulation seen in lizards: labs vs. natural environments. Metabolic heat generation in plants: co, cn and az insensitive, ucps, aox. Engages in both heat loss and generation. Regional endothermy in fish = warm bodied fish: rete mirabile, countercurrent heat exchange, area of rete, evolutionary adaptation. Lecture 5: energy i the capacity to do work. Energy metabolism: catabolic processes, anabolic processes.
