Cellular respiration is an exothermic process that occurs in all living cells, both plant and animal., The energy transferred in this process is used in life processes., These processes include protein synthesis, movement and keeping warm., Respiration can take place either aerobically with oxygen or anaerobically without., Aerobic respiration uses glucose and oxygen as reactants and produces carbon dioxide and water., Anaerobic respiration in animals produces a build up of lactic acid., As the oxidation of glucose in anaerobic respiration is incomplete less energy is releasesd, Anaerobic respiration in yeast is different, it produces ethanol and carbon dioxide instead of lactic acid., This process is of economic importance in fermentation to create bread and alcoholic beverages., The balanced symbol equation for aerobic respiration is balanced by putting a 6 in front of the water, carbon dioxide and oxygen molecules.,

Respiration KS4

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