1.

(a) What aćvantage over an aquatic organism does a terrestrial organism haveobtaining oxygen for respiration?(b) What are the different ways in which glucose is oxidised to provide enersorganisms?

Answer»

Animals living in water need use the oxygen dissolved in water. However the amount of dissolved oxygen is fairlylowcompared to the amount of oxygen in the air.

In this case pyruvate is converted into ethanol and carbon dioxide. In aerobic respiration, breakdown of pyruvate takes place in presence of oxygen to give rise 3 molecules of carbon dioxide andwater. The release of energy in aerobic respiration is much more than anaerobic respiration



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