NUSCTX 103 Lecture Notes - Lecture 8: Membrane Transport Protein, Ester, Calorimeter
3 Dec 2020
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Does thyroid hormone regulate plasma glucose levels: not directly, but stimulatory effect on bmr (stimulates uncoupling and increases na+, K+-atpase pump activity: thyroid hormone from thyroid glands (trh-tsh) also: Increases protein synthesis, promoting growth: stimulates fa synthesis and esterification to tag. Measuring the energy value of a compound: first and second laws of thermodynamids, h = enthalpy, s = entropy, g = gibbs free energy, these terms give us information about biochemical reactions. Atwater factors: these values roughly correct for, difference in completeness of chemical vs biological oxidation, absorption efficiency, energy values of foods in food tables are based on this approach. Gibbs free energy predicts direction of the reaction. If g 0, the reaction is near equilibrium and direction can be easily reversed with a change in concentration of products or substrates. If g is quite negative or positive, it is non equilibrium and proceeds in the forward (-) or reverse (+) direction.
