Aerobic Metabolism PDF

1   Glycolysis generates 2 pyruvate molecules Pyruvate that enters the mitochondria is converted to acetyl coenzyme A. Acetyl‐CoA can then enter the Krebs cycle. The NADH & FADH2 molecules enter the electron transport cain (ETC), where they can be...

1   Glycolysis generates 2 pyruvate molecules Pyruvate that enters the mitochondria is converted to acetyl coenzyme A. Acetyl‐CoA can then enter the Krebs cycle. The NADH & FADH2 molecules enter the electron transport cain (ETC), where they can be used to synthesize ATP over 90% of our ATP. 22   Primary source of ATP at rest and during low‐intensity activities  Uses primarily carbohydrates and fats as substrates  Primary function of the Kreb’s Cycle is to generate electron carriers Electron carriers are sent to the electron transport chain (ETC) for ATP production 33  Fig. 3.6. Haff et al. 2016. Essentials of Strength… Human Kinetics 4 4   ETC takes the electrons and hydrogen atoms from NADH and FADH2 molecules and combines them with oxygen to make ATP.  This flow of hydrogens and electrons drives the enzyme ATP Synthase to produce ATP Over 90% of our ATP is produced this way  Essential for endurance athletes and exercise recovery 55 6 6   During what activities would you use aerobic metabolism? Why would you want to use it compared to fast glycolysis?  What is the purpose of the Kreb’s Cycle in metabolism?  What is the purpose of the ETC in metabolism?  The 2 key enzymes of Kreb’s Cycle & ETC  Where do you use oxygen? 7   Haff & Triplett. Essentials of Strength Training & Conditioning, 4th edition. Human Kinetics, 2016.  Baechle & Earle. Essentials of Strength & Conditioning, 3rd edition. Human Kinetics, 2009. 8 8