As the amount of O2 that dissolves in the plasma increases, what is it directly proportional to? ...

As the amount of O2 that dissolves in the plasma increases, what is it directly proportional to?
 
  a. Its partial pressure
  b. Its solubility coefficient
  c. Minute ventilation
  d. Temperature

---

Q. 2  During normal inspiration, which of the following occurs?
 
  a. Alveoli at the apexes expand less than those at the bases.
  b. Alveoli at the apexes expand more than those at the bases.
  c. Alveoli at the bases and apexes expand almost equally.
  d. Alveoli at the bases expand less than those at the apexes.

---

Q. 3  How is the vast majority of O2 carried in the blood?
 
  a. As bicarbonate ion (HCO3)
  b. As carbamino compounds
  c. Chemically combined with Hb
  d. In physical solution

---

Q. 4  Even in healthy young subjects, regional differences in pulmonary ventilation and blood flow result in the PaO2 being lower than the PAO2. Why is this so?
 
  a. Most blood flows through the apexes of the lung.
  b. Most blood flows through areas with high.
  c. Most blood flows through the bases of the lung.
  d. Most ventilation goes to the apexes of the lung.