Respiratory System Physiology Test 03 Online Preparation Shani Malik — January 16, 2021 in Biology Tests • add comment Respiratory System Physiology Test 03 Online Preparation 1. Oxygen capacity of haemoglobin is?A. The amount of oxygen which is present in blood of alveolar circulation B. The amount of oxygen which haemoglobin exchanges with similar amount of carbondioxide C. None of theseD. The amount of oxygen which 1 gm of haemoglobin can bind Loading... 2. Haldane effect states that?A. Deoxygenation of oxyhaemoglobin is directly proportional to PCO2 B. Oxyhaemoglobin behaves as a strong acid so more and more amount of it formed releases more and more H+ions C. Increase the oxygen affinity of haemoglobin D. None of these facts Loading... 3. How much oxygen binds with 1 gm of haemoglobin in normal state?A. 0.5ml B. 1.0gm C. 0.75ml D. 1.34gm Loading... 4. A person on inhaling air having well as carbon monoxide suffers from suffocation because?A. Hb of blood combines with CO instead of O2 and the product cannot dissociate B. CO affects nerves of the lungsC. CO reacts with O2 reducing its percentage in the air D. CO affects diaphragm and internal muscles Loading... 5. Which of these facts sugests that oxygen is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?A. Oxygen carrying capacity of whole blood is higher than that of plasma B. Oxyhaemoglobin can dissociate into haemoglobin and oxygenC. Increase in CO2 concentration decrease the O2 affinity of haemoglobinD. Haemoglobin can combine with oxygen Loading... 6. A catabolic process by which the chemical degradation of body fuel substances is done to obtain energy is called?A. Metabolism B. Tissue respiration C. External respiration D. None of these Loading... 7. Deoxygenation of oxyhaemoglobin is?A. Directly proportional to blood PCO2 B. Inversely proportional to blood PCO2 C. Directly proportional to PO2 D. Inversely proportional to PO2 Loading... 8. The atmosphere of industrial area loaded with chimines is considered harmful to health because?A. There is more water vapour which makes breathing difficult B. The air has very low percentage of oxygenC. There is carbonmomonoxide which can bind with Hb 230 times more than oxygen and its pressure of about 0.7 mm Hg is lethal D. There is more and more carbondioxide Loading... 9. During one circuit of blood from lungs to the tissue and back through circulatory system the percentages of haemoglobin giving up its oxygen to tissues is?A. 50% B. 75% C. 100%D. 25% Loading... 10. Which of these is termed Bohr effect?A. Deoxygenation of oxyhaemoglobin is directly proportional to PCO2 B. Oxygen carrying capacity of whole blood is higher than plasmaC. None of theseD. Increase in CO2 concentration decreases O2 affinity of Hb Loading... Loading...
