Select the
correct order of transport of carbon transport in human blood.
a) Bicarbonate – carbaminohemoglobin - dissolved form in plasma.
b) Dissolved form in plasma -Bicarbonate- carbaminohemoglobin
c) Bicarbonate- dissolved form in plasma -carbaminohemoglobin
d) Dissolved form in plasma -Bicarbonate- carbaminohemoglobin?
Answers
Answer:
Carbon dioxide is more soluble in blood than is oxygen; about 5 to 7 percent of all carbon dioxide is dissolved in the plasma.
Carbon dioxide has the ability to attach to hemoglobin molecules; it will be removed from the body once they become dissociated from one another.
In the bicarbonate buffer system, the most common form of carbon dioxide transportation in the blood, carbon dioxide is finally expelled from the body through the lungs during exhalation.
Importantly, the bicarbonate buffer system allows little change to the pH of the body system; it allows for people to travel and live at high altitudes because the system can adjust itself to regulate carbon dioxide while maintaining the correct pH in the body.
Key Terms
carbaminohemoglobin: a compound made up of hemoglobin and carbon dioxide; one of the forms in which carbon dioxide exists in the blood
carbonic anhydrase: a family of enzymes that catalyze the rapid interconversion of carbon dioxide and water to bicarbonate and protons
carbon monoxide: a colorless, odourless, flammable, highly toxic gas