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Biology Interview Question:
What are the balanced chemical equations of breathing?
Submitted by: AdministratorBreathing is all about gas exchange
When we breathe, we are adding a new Tidal volume to our Functional Residual capacity. With that comes Oxygen, Carbon dioxide, Nitrogen and Water vapor. The only 2 gases that participate in actual gas exchange are oxygen and Carbon dioxide. Our ventilation rate is matched to our Carbon dioxide production and therefore if we make twice as much carbon dioxide our ventilation will increase by 2 fold.
At the lungs: Hydrogen + Bicarbonate form in the presence of Carbonic anhydrate Carbonic acid which gets converted by that same enzyme to Carbon dioxide and water. Remember carbon dioxide is a volatile acid so it is breathed off.
Also at the lungs Oxygen saturates Hemoglobin because as hydrogen is being used by Carbonic anhydrate of the red blood cells it is being removed from the Hemoglobin an shifting the dissociation curve to the left therefore increasing Hemoglobin affinity for oxygen. Oxygen content = (% saturation of Hb x Amt of Hb) + Dissolved oxygen in plasma (ml/dl)
O.3ml/dl is the normal dissolved oxygen in plasma if % saturation of Hb is 97.5 or higher.
Submitted by: Administrator
When we breathe, we are adding a new Tidal volume to our Functional Residual capacity. With that comes Oxygen, Carbon dioxide, Nitrogen and Water vapor. The only 2 gases that participate in actual gas exchange are oxygen and Carbon dioxide. Our ventilation rate is matched to our Carbon dioxide production and therefore if we make twice as much carbon dioxide our ventilation will increase by 2 fold.
At the lungs: Hydrogen + Bicarbonate form in the presence of Carbonic anhydrate Carbonic acid which gets converted by that same enzyme to Carbon dioxide and water. Remember carbon dioxide is a volatile acid so it is breathed off.
Also at the lungs Oxygen saturates Hemoglobin because as hydrogen is being used by Carbonic anhydrate of the red blood cells it is being removed from the Hemoglobin an shifting the dissociation curve to the left therefore increasing Hemoglobin affinity for oxygen. Oxygen content = (% saturation of Hb x Amt of Hb) + Dissolved oxygen in plasma (ml/dl)
O.3ml/dl is the normal dissolved oxygen in plasma if % saturation of Hb is 97.5 or higher.
Submitted by: Administrator
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