1. Energy Transfer in the Body
Chapter 6

19. Energy Systems Power vs Capacity
Max Power Max Capacity
Moles/min Total Moles
ATP-CP
Anaerobic Glycolysis
Aerobic

20. Efficiency of ATP Resynthesis
Substrate-level phosphorylation – 30%
Oxidative phosphorylation – 40 to 50%
Energy not conserved is released as heat

21. Regulation of Energy Metabolism
Compounds that either inhibit or activate enzymes at key control points in the oxidative pathways modulate regulatory control of glycolysis and the citric acid cycle
Greatest effect exerted by ADP levels
Regulators are redundant

22. Regulation of Fat/CHO Use
Fat use is related to FFA concentration in plasma
Regulators that increase lipase activity increase fat use
Epinephrine, norepinephrine, & glucagon increase fat mobilization
Lactic Acid & Insulin decrease fat mobilization