Ex Phys Exam 1 Review

Ex Phys Exam 1 Review - Exercise Physiology Exam 1 Review...

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Exercise Physiology Exam 1 Review •Describe 1 st law of thermodynamics & relation to bioenergetics -1 st law states that energy neither created or destroyed -energy required from one source & then converted to another (ie from one biological system to another) -energy in as food digested into macromolecules synthesized into ATP used to supply energy to move muscles for outward movement •Difference btwn direct & indirect calorimetry? -direct calorimetry direct measure of heat produced by the body & is difficult to measure -indirect calorimetry measure of O2 consumption most accurate way to measure VO2max how measure metabolic rate bc all processes in the body require oxygen •Difference btwn endergonic & exergonic reactions? -endergonic energy required to perform work energy put INTO system positive ΔG -ATP ADP + Pi -exergonic energy is realeased/produced energy OUTPUT negative •Function of enzymes in catalyzing chemical reactions & how is enzymatic activity regulated? -enzymes lower energy of activation, increase the rate of the reaction -enzymatic activity regulated by noncovalent binding of specific metabolite at sire on enzyme other than active site via modulators which change the catalytic rate of
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Ex Phys Exam 1 Review - Exercise Physiology Exam 1 Review...

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