25
QuizMultiple Choice

Respiratory System Career Specialties — Unit test

Question 25 • 26-27 Ignite Health Science Concepts - EL3602

What happens directly after hemoglobin binds with carbon dioxide from cells in the body?

Answer
A
Carbon dioxide is exhaled through the lungs.
B
Carbon dioxide is carried through the blood vessels back to the lungs.
C
Carbon dioxide is changed into oxygen in the hemoglobin.
D
Carbon dioxide is mixed with plasma to be diffused into blood.

Explanation

After hemoglobin binds some carbon dioxide in body tissues, the blood carries it toward the lungs. There, the carbon dioxide is released and then exhaled. So the next step is that it travels through blood vessels back to the lungs, not that it is immediately exhaled or changed into oxygen.

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