CSEP-CEP: Theory questions with correct answers

Metabolism - Answer Total energy expenditure of all cata/anabolic processes (bodies ability to use fuel) Measured by either direct (calorimetry chamber) or indirect (Douglas bag/metabolic cart) calorimetry Calorimetry = measure of energy expenditure (kcals = E to heat 1kg water 1°C) Oxidation-Reduction Reaction - Answer - Are always *coupled reactions* (the energy given off by the exergonic reaction powers the endergonic reaction) - *Oxidation*: removing an electron - *Reduction*: addition of an electron - Often involve the *transfer of hydrogen atoms* rather than free electrons; hydrogen atoms contain one electron and a molecule that loses a hydrogen atom loses an electron and therefore is oxidized Bioenergetics - Answer - The chemical processes of converting food into energy (glycolysis, citric acid cycle, etc.) - Formation of ATP *3 Pathways*: 1. ATP-PCr or Anaerobic Alactic System 2. Glycolysis or Anaerobic Lactic System or Substrate Level Phosphorylation 3. Aerobic System or Oxidative Phosphorylation or Cellular Respiration (Beta Oxidation/Acetyl CoA, Citric Acid Cycle/Krebs Cy