62. (a) Define anaerobic respiration. Write a word equation for this process. Name an organism which always normally uses aerobic respiration, (b) What type of respiration takes place in human muscles during heavy physical exercise ?

62. (a) Define anaerobic respiration. Write a word equation for this p

1.	62. (a) Define anaerobic respiration. Write a word equation for this process. Name an organism which always normally uses aerobic respiration, (b) What type of respiration takes place in human muscles during heavy physical exercise ?
Answer» tion:Anaerobic (cellular) respiration is a respiratory process that occurs in both prokaryotes and eukaryotes in which cells BREAK down the sugar molecules to produce energy without the PRESENCE of oxygen.The EQUATION is: glucose + enzymes = carbon dioxide + ETHANOL / lactic acid. Humans and most animals normally use aerobic respiration.Anaerobic respiration takes place in human muscles during vigorous physical exercise. During exercise, our body needs more energy and aerobic respiration is not SUFFICIENT to provide energy. Hence muscles start anaerobic respiration to meet the extra energy needed by the body.