Question

carbon dioxide is carried in the blood...(choose all that are true)

a. bound to oxygen

b. as bicarbonate

c. mostly as physically dissolved co2

d. bound to hemoglobin

Answer 1

Carbon dioxide in the blood is transported from tissues to lungs in three methods. They are

1. Dissolution of carbon dioxide directly in blood - 5 to7 percentage of carbon dioxide transported through method
2. As bicarbonate: 85% of Co2 transported back this method
3. Binds to hemoglobin: 10% of carbon dioxide is transported by this method.

So Answer for "carbon dioxide is carried in the blood" is

b. as bicarbonate

c. mostly as physically dissolved co2

d. bound to hemoglobin