Fermentation (the process of fermenting something) is basically taking a sugar (carbohydrate) and turning it into an acid or alcohol. This is done using fungus (yeast) or bacteria (but good ones not the ones that make you sick).Fermentation using yeast makes some of our favourite products including bread and alcohol.
Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration.
