Gas exchange in the lungs occurs due to:
A) active transport of gases between the blood and the alveolus.
B) active transport of gases between hemoglobin and the alveolus.
C) passive diffusion of gases between the blood and the alveolus.
D) facilitated diffusion of gases between the blood and the alveolus.
E) facilitated diffusion of gases between the hemoglobin and the alveolus.
Correct Answer:
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Q37: Which of these structures is analogous in
Q38: The respiratory center is located in the:
A)medulla.
B)cortex.
C)spinal
Q40: Which respiratory system characteristics are shared by
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A)causes breathing
Q43: One _ leads to each human lung.
A)larynx
B)bronchus
C)pharynx
D)trachea
E)bronchiole
Q44: When blood is drawn from a blood
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