This energy can then be used to produce heat, for movement, growth, reproduction and active uptake.
There are 2 types of respiration - aerobic and anaerobic.
Aerobic respiration happens in the presence of oxygen and releases more energy than anaerobic respiration.
Aerobic respiration word equation:
glucose + oxygen → carbon dioxide + water + energy
Aerobic respiration balanced chemical equation:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
Anaerobic respiration happens in the absence of oxygen
It occurs during strenuous exercise. The buildup of lactic acid causes muscle soreness.
glucose → lactic acid + energy
Anaerobic respiration word equation (in yeast cells):
glucose → alcohol + carbon dioxide + energy
The alcohol produced is the basis of wine and beer production.