sexta-feira, 2 de novembro de 2012

1. Distinguish between ventilation, gas exchange and cell respiration




Ventilation: Is the process of inhaling and exhaling. (The air in the alveoli needs to be refreshed frequently). 



Gas exchange: Is the process of exchanging one gas for the other. (Carbon dioxide - oxygen).



Cell Respiration: Is the chemical process that occurs in the mitochondria and energy is released as ATP. 

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