Key learning points

1. Word and balanced symbol equations for anaerobic cellular respiration in humans, and conditions in which it occurs.
2. Word and symbol equations for anaerobic respiration in plants and micro-organisms, and conditions in which it occurs.
3. Anaerobic cellular respiration takes place only in the cell cytoplasm and does not involve mitochondria.
4. Anaerobic cellular respiration transfers less energy than aerobic cellular respiration, but more quickly.
5. Uses of anaerobic cellular respiration (fermentation) in yeast.

Keywords

• Cellular respiration - an exothermic chemical process that transfers energy for life processes, using glucose as a fuel

• Anaerobic - a process that does not require oxygen

• Lactic acid - a product of anaerobic cellular respiration in humans that causes muscle cramps

• Oxygen debt - the amount of oxygen necessary to remove lactic acid from the body after exercise

• Fermentation - anaerobic cellular respiration in yeast that produces ethanol (a type of alcohol) and carbon dioxide gas

Common misconception