BIOA02H3 Lecture Notes - Lecture 20: Calorimeter, Specific Dynamic Action, Poikilotherm
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BIOA02H3 Full Course Notes
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X know - glycolysis: glucose -> pyruvate -> oxi to pdc acetyl-coa => krebs/ => e- transport chain: fadh & nadh enter -> pdc atp. Main point - glucose metab inc o2 consumption & co2 production (protein & lipid metab as well) => they can measure metab rate. Direct vs indirect measure of metabolic rate = heat production vs o2 consumption. Metabolic rate: rate of energy consumption by tissue/cell -> indicate 1. Drain on ecosystem i. e. resources extracted from environ => higher rate = greater requirement. Animal: ingest food as chemical energy -> (func) 1. Maintenance (energy for basic physiological/ biochemical processes) 3. Lost in org form e. g. milk production, mucous secretion, gamete release => inefficient -> metab heat production = waste pdt. Assume 0->1 degree celsius -> collect & measure water -> cal heat production e. g. 100 ml water = 100 calories (1 food calorie = 1000 real calories)
