BPK 205 Final: Biochemistry of Muscle Function and Energy Systems in Muscle Section of the course examining the energy systems used by muscle including the high energy phosphate transfer, glycolysis and aerobic phosphorylation. Also looks at contribution of various sour
16 Oct 2011
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Biochemistry of muscle function energy systems in muscle. Atp + h20 ------------ adp + pi + energy (7. 3 kcal/mol atp, under ideal conditions) Skeletal muscle is capable of enormous increases in force and velocity and consequently in the rate of atp hydrolysis or demand. Atp demand at rest may increase 200-fold during contraction. Problem: in skeletal muscle tissue the concentration of atp is low, in fact only sufficient to sustain maximal muscle contraction for an estimated 2 to 3 seconds. Therefore not surprising that skeletal possesses a very sophisticated energy metabolic assembly that is able to respond to the highly variable atp requirements as dictated by exercise intensity (ie. atp is continuously regenerated as it is needed for work) Bioenergetics: the study of how energy is generated in the cell. It refers to the metabolic process of converting foodstuffs (substrates) into atp. Proteins: not a primary energy source during exercise. There are 3 energy (atp) delivery systems in muscle.
