metabolism Metabolism refers to the processes your body uses to break down nutrients, form compounds that cells can use for energy ,and use those compounds to fuel body functions. Your body secretes enzymes to break down food into sugars, proteins, and fats. Then, each cell of your body can take these in and use them in aerobic or anaerobic metabolic processes to form adenosine triphosphate (ATP), the fuel used in the cell.
AEROBIC METABOLISM During aerobic metabolism, your body creates energy through the combustion of carbohydrates, amino acids, and fats in the presence of oxygen . Aerobic metabolism provides energy for exercise and other body functions (like breathing). Examples of activities that use aerobic metabolism include walking, running, or cycling with sustained effort. ANAEROBIC METABOLISM Anaerobic metabolism creates energy by burning carbohydrates in the absence of oxygen. This occurs when your lungs cannot put enough oxygen into the bloodstream to keep up with the demands of your muscles for energy. It is generally used only for short bursts of activity, such as when you sprint when running or cycling, or lift heavy weights. When there isn't enough oxygen in the bloodstream, glucose and glycogen cannot be fully broken down into carbon dioxide and water. Instead, lactic acid is produced, building up in the muscles and degrading muscle function.
Aerobic vs anaerobic
Aerobic metabolism The human body uses glucose to produce adenosine triphosphate (ATP) molecules in the aerobic metabolic process. ATP is what fuels your muscles. The only byproducts of the aerobic metabolism of carbohydrates are carbon dioxide and water. Your body disposes of these by breathing, sweating, and urinating.
Compared with anaerobic metabolism, which produces lactic acid, the byproducts of aerobic metabolism are easier to remove from the body. This means minor muscle soreness after exercise with aerobic metabolism. Aerobic metabolism is part of cellular respiration and involves your cells making energy through 1. Glycolysis 2. The citric acid cycle 3. Electron transport/oxidative phosphorylation
glycolysis
Link reaction (oxidative decarboxylation)
Krebs cycle
ELECTRON TRANSPORT CHAIN (OXIDATIVE PHOSPHORYLATION)