Two types
Definition: Anaerobic respiration does not need oxygen. It is the release of a relatively small amount of energy in cells by the breakdown of food substances in the absence of oxygen.
In yeast/plants
Equation: Glucose = Alcohol + Carbon dioxide + Energy
In animals
Definitio: The chemical reaction in cells that use oxygen to break down nutrient molecules to release energy.
Equation: Glucose + Oxygen = Carbon dioxide, Water and Energy
Equation: Glucose = Lactic acid + Heat energy