Aerobic respiration requires oxygen and produces more energy (ATP) than anaerobic respiration, which occurs in the absence of oxygen. Anaerobic respiration results in the production of lactic acid or alcohol as byproducts. Some organisms known to use anaerobic respiration include bacteria, yeasts, and some parasites.
Differences between Aerobic and Anaerobic Respiration:
1. Presence of Oxygen:
Aerobic respiration requires oxygen, while anaerobic respiration occurs without it.
2. Energy Production:
Aerobic respiration generates significantly more ATP (approximately 38 per glucose molecule) than anaerobic respiration (approximately 2 per glucose molecule).
3. End Products:
Aerobic respiration produces carbon dioxide and water as byproducts. Anaerobic respiration produces either lactic acid (in muscles and certain bacteria) or alcohol (in yeasts) as byproducts.
4. Location:
Aerobic respiration takes place in the cytoplasm and mitochondria, while anaerobic respiration occurs only in the cytoplasm.
5. Oxidation of Glucose:
Aerobic respiration involves complete oxidation of glucose, while anaerobic respiration involves incomplete oxidation.
Organisms that use Anaerobic Respiration:
Bacteria: Many species of bacteria, including Lactobacillus and Clostridium, use anaerobic respiration.
Yeasts: Saccharomyces species (used in baking and brewing) utilize anaerobic respiration to produce alcohol.
Parasites: Some parasitic worms also employ anaerobic respiration.