Question
most of the carbon dioxide you exhale comes from which of the following?
Multiple choice question.
CO2 carried in the plasma as dissolved gas
Bicarbonate ions transported into the RBCs and used to generate free CO2.
CO2 released from carbaminohemoglobin in the erythrocytes
CO2 released from carbamino compounds in the plasma
Multiple choice question.
CO2 carried in the plasma as dissolved gas
Bicarbonate ions transported into the RBCs and used to generate free CO2.
CO2 released from carbaminohemoglobin in the erythrocytes
CO2 released from carbamino compounds in the plasma
Answers
GPT-4o mini
Most of the carbon dioxide you exhale comes from **bicarbonate ions transported into the RBCs and used to generate free CO2**.
In the body, carbon dioxide is primarily transported in three forms: dissolved CO2 in plasma, bicarbonate ions (HCO3-) in plasma, and carbamino compounds. The majority of CO2 is converted to bicarbonate ions, predominantly in red blood cells (RBCs). When needed, bicarbonate can be converted back to CO2, which is then exhaled through the lungs.
In the body, carbon dioxide is primarily transported in three forms: dissolved CO2 in plasma, bicarbonate ions (HCO3-) in plasma, and carbamino compounds. The majority of CO2 is converted to bicarbonate ions, predominantly in red blood cells (RBCs). When needed, bicarbonate can be converted back to CO2, which is then exhaled through the lungs.