Top 150+ Solved Breathing and Exchange of gases MCQ Questions Answer
Q. The de-oxygenated blood from heart comes to the lungs by
a. Pulmonary artery
b. Pulmonary vein
c. Branchial artery
d. Renal artery
Q. Oxygen containing blood transported from lungs is to heart by
a. Pulmonary artery
b. Pulmonary vein
c. Branchial artery
d. Renal vein
Q. How much fraction of oxygen is transported to tissues through RBCs?
a. 100%
b. 56%
c. 45%
d. 97%.
Q. H2 CO3 is converted into CO2 and H2O with the help of an enzyme known as
a. Carboxylase
b. Carbonic dehydrogenase
c. Carbonicenhydrase
d. Carbonic anhydrase.
Q. One RBC can transport about how many molecles of oxygen?
a. One million
b. Ten million
c. One billion
d. Ten billion
Q. How many percentage of CO2 transport in the form of carbamino compounds ?
a. 70%
b. 90%
c. 5%
d. 20%
Q. The largest amount of CO2 is transported in blood as
a. Carbamino compounds
b. Bicarbonates
c. Carbonic acid -
d. Carbonate ions.
Q. CO2 reacts with water to form
a. Haemoglobinic acid
b. Carbonic acid
c. Bicarbonate ions
d. Carbon mono oxide.
Q. Bronchitis is a
a. Bacterial infection
b. Viral infection
c. Protozoan infection
d. Fungal infection.
Q. Flattening of alveolar ducts (tracheal vessels) results in
a. Asthma
b. Emphysema
c. Lung cancer
d. Bronchitis.