BIOB34H3 Lecture Notes - Lecture 1: Calorimetry, Respiratory Quotient, Hyperthyroidism
Document Summary
Ingested chemical energy fecal chemical energy or absorbed chemical energy. Absorbed chemical energy storage or conversion to energy currency (atp) Conversion to energy currency (atp) work or biosynthesis. Work internal work or external work. Biosynthesis growth and maintenance or exported organic matter or storage. Heat is released from all energy transformations ( ) Rate at which you can turn chemical energy into heat energy. Direct calorimetry: directly measure heat given off by animals, antoine lavoiser (1780) first set-up. Bmr conditions: thermoneutral zone, average body temperature, post-absorptive, resting (but awake, non-reproductive, unstressed (acclimated to lab conditions) Smr conditions: post-absorptive, resting, non-reproductive, unstressed, must report temp @ which smr was measured, should be acclimated to temp. Difference between bmr and smr: thermoneutral zone and average body temperature versus reported temperature. Major metabolic processes responsible for bmr/smr: protein synthesis (1/3, na+ -k+ atpase (1/3, proton leak (1/6)
