What effect does hyperventilation have on the oxygen binding affinity of hemoglobin ?

Related Mcqs:

1. Which of the following does not stimulate alveolar hyperventilation ?

   A. Hypoxia
   B. Hypercapnia
   C. Acidosis
   D. Stretching of airways

2. At PH 7 the binding of 2,3 DPG to hemoglobin occurs at which site ?

   A. Sulphydryl group
   B. Carboxy terminal
   C. Amino terminal
   D. Histidine

3. Oxygen affinity is increased by all except_________________?

   A. Alkalosis
   B. Hypoxia
   C. Increased HbF
   D. Hypothermia

4. Oxygen affinity decreases in_________________?

   A. Hypoxia
   B. Hypothermia
   C. HbF
   D. Increased pH

5. Hemoglobin is the major buffer in blood, bicarbonate ions diffuse out of erythrocyte into plasma in exchange of_______________?

   A. Potassium
   B. Phosphate
   C. Carbonic acid
   D. Chloride ion

6. Infants acquire adult hemoglobin level at_____________?

   A. Birth
   B. End of 1st year
   C. Puberty
   D. 4 years

7. The hemoglobin % of a normal newborn is______________?

   A. 8
   B. 12
   C. 10
   D. 30

8. Embryonic hemoglobin is composed of________________?

   A. Gamma and beta
   B. Epsilon and gamma
   C. Alpha and beta
   D. Gamma and alpha

9. Hemoglobin has______________?

   A. Four polypeptide chains, 2α, 1β,1Υ chain
   B. Four heme molecules and four polypeptide chains
   C. Four heme molecules, 2α and 2β chains
   D. One heme and one globin molecule

10. The drug which has an affinity for a receptor site and produces the intrinsic activity of the receptor cell or enzyme system is known as____________?

    A. An agonist
    B. A non competitive antagonist
    C. A physiologic antagonist
    D. A competitive antagonist