ATP — continuous production?
Body constantly synthesizes ATP for energy.
Aerobic vs anaerobic — oxygen use?
Aerobic uses oxygen; anaerobic does not.
ATP-CP system — duration?
Supports effort for 5-12 seconds.
Anaerobic glycolysis — main substrate?
Breaks down glucose into pyruvate and lactate.
Lactate formation — source?
Produced from pyruvate during anaerobic glycolysis.
Aerobic system — primary process?
Uses oxygen to produce ATP via citric acid cycle.
Energy sources — main types?
Carbohydrates, fats, proteins.
Fatty acid oxidation — key process?
Beta-oxidation breaks fats into Acetyl CoA.
Protein contribution — percentage?
Provides 10-15% of energy during prolonged effort.
Creatine phosphate — role?
Rapidly resynthesizes ATP during high effort.
Glycolysis — net ATP?
Produces 2 ATP per glucose molecule.
Lactate — supports?
Allows glycolysis to continue anaerobically.
Citric acid cycle — location?
In mitochondria, producing high-energy molecules.
Electron transport chain — ATP yield?
Generates about 34 ATP per glucose.
Fats — main energy source when?
During moderate, long-duration efforts.
Proteins — energy contribution?
Used when carbohydrate and fat stores are low.
Beta-oxidation — produces?
Generates Acetyl CoA, NADH, FADH2.
ATP production — key point?
Supported by interconnected aerobic and anaerobic systems.
Testez vos connaissances avec un QCM de 9 questions sur Energy Systems and Metabolism.
1. What is ATP production in the body?
2. Who first distinguished between aerobic and anaerobic energy systems in 1923?
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