Aerobic uses oxygen for a large ATP yield; anaerobic occurs without oxygen with much less ATP.
Aerobic yields about 15 times more ATP than glycolysis alone. In anaerobic conditions, pyruvate is reduced to lactate (animals) or ethanol and CO2 (yeast). Facultative organisms switch.
Anaerobic pathways allow short bursts of ATP, but acid build-up limits them. Some organisms thrive anaerobically all their lives.
Key idea: oxygen allows complete oxidation, giving far more ATP.
Aerobic uses oxygen for a large ATP yield; anaerobic occurs without oxygen with much less ATP.
Aerobic and Anaerobic Respiration is one of the 53 topics in Metabolism & Bioenergetics. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Alcoholic Fermentation, Glycolysis, ATP Yield from Glucose.
Sprinting relies on anaerobic respiration for a short burst.
Aerobic and Anaerobic Respiration is a Beginner topic, so no earlier topic is required. Other Beginner topics in Metabolism & Bioenergetics that pair well with it include Metabolism, Anabolism and Catabolism, ATP.
The closest topics to Aerobic and Anaerobic Respiration are Alcoholic Fermentation, Glycolysis, ATP Yield from Glucose, Cellular Respiration. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Aerobic and Anaerobic Respiration. To practise the whole of Metabolism & Bioenergetics, use the Metabolism & Bioenergetics quiz.
Aerobic and Anaerobic Respiration: Aerobic uses oxygen for a large ATP yield; anaerobic occurs without oxygen with much less ATP. Alcoholic Fermentation: Yeast convert pyruvate to ethanol and carbon dioxide, regenerating NAD+. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Alcoholic Fermentation and explain the difference aloud. Finally, take the Metabolism & Bioenergetics quiz and come back to this page for any question you miss.
Yeast convert pyruvate to ethanol and carbon dioxide, regenerating NAD+.
⚡ Metabolism & BioenergeticsA ten-step pathway in the cytoplasm that splits glucose into two pyruvate, yielding net 2 ATP and 2 NADH.
⚡ Metabolism & BioenergeticsComplete aerobic oxidation yields about 30 to 32 ATP, compared with 2 from fermentation.
⚡ Metabolism & BioenergeticsThe process of releasing energy from glucose to make ATP, using oxygen in the aerobic form.
⚡ Metabolism & Bioenergetics