Aerobic and Anaerobic Respiration

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Energy is released in all living cells when occurs. Respiration may be or anaerobic.

In aerobic respiration, energy is released from by combining it with .


Swimming is an aerobic activity

Glucose is broken down into water and dioxide. It occurs during normal activities. Energy is not produced as as in anaerobic activity.

Anaerobic activity occurs without .


Weightlifting is an anaerobic activity

Glucose is partly broken down into acid. A small amount of energy is released in a very short time. The rate of production of energy is much in this activity, compared with respiration. The accumulation of lactic acid in the makes makes them tired . To remove lactic acis it needs to be into and carbon dioxide. This amount of oxygen to achieve this is known as the oxygen . Deep is required to cause this oxidisation process.