PSL201Y1 Lecture Notes - Lung Volumes, Tidal Volume, Acetyl-Coa
20 Apr 2012
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The process of producing energy consists of taking fats and carbodydraytes, breaking these sugars and fats down so that we end up with hydrogen ions. Adp is converted into atp, the energy substance. At the end of the process, we still wind up with hydrogen ions. When we hold our breath, there is a rise in hydrogen ions which is problematic. Therefore, oxygen is necessary to come into the system through respiration, combine with the hydrogen ion and produce water. The process of producing energy is done though the krebs cycle. 500 ml is approx the volume of air that we breathe in and out at a time during rest. However, the composition of the air is changed. We use some of the oxygen and replace it with some of the co2 coming off the krebs cycle. In a minute, we breathe about 20 times. Therefore v = total volume frequency = 500 (20)=10 000 ml or 10.
