Respiratory System Physiology Test 03 Online Preparation Leave a Comment / Biology Tests / By Shani Malik Respiratory System Physiology Test 03 Online Preparation 1. A person on inhaling air having well as carbon monoxide suffers from suffocation because?A. CO reacts with O2 reducing its percentage in the air B. Hb of blood combines with CO instead of O2 and the product cannot dissociate C. CO affects nerves of the lungsD. CO affects diaphragm and internal muscles Loading... 2. The atmosphere of industrial area loaded with chimines is considered harmful to health because?A. There is carbonmomonoxide which can bind with Hb 230 times more than oxygen and its pressure of about 0.7 mm Hg is lethal B. The air has very low percentage of oxygenC. There is more water vapour which makes breathing difficult D. There is more and more carbondioxide Loading... 3. A catabolic process by which the chemical degradation of body fuel substances is done to obtain energy is called?A. Metabolism B. None of theseC. Tissue respiration D. External respiration Loading... 4. How much oxygen binds with 1 gm of haemoglobin in normal state?A. 0.5ml B. 1.0gm C. 1.34gmD. 0.75ml Loading... 5. Deoxygenation of oxyhaemoglobin is?A. Inversely proportional to PO2B. Directly proportional to PO2 C. Inversely proportional to blood PCO2 D. Directly proportional to blood PCO2 Loading... 6. Oxygen capacity of haemoglobin is?A. None of theseB. The amount of oxygen which is present in blood of alveolar circulation C. The amount of oxygen which haemoglobin exchanges with similar amount of carbondioxide D. The amount of oxygen which 1 gm of haemoglobin can bind Loading... 7. Haldane effect states that?A. Oxyhaemoglobin behaves as a strong acid so more and more amount of it formed releases more and more H+ions B. None of these factsC. Deoxygenation of oxyhaemoglobin is directly proportional to PCO2 D. Increase the oxygen affinity of haemoglobin Loading... 8. Which of these facts sugests that oxygen is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?A. Increase in CO2 concentration decrease the O2 affinity of haemoglobinB. Oxygen carrying capacity of whole blood is higher than that of plasma C. Haemoglobin can combine with oxygen D. Oxyhaemoglobin can dissociate into haemoglobin and oxygen Loading... 9. Which of these is termed Bohr effect?A. Deoxygenation of oxyhaemoglobin is directly proportional to PCO2 B. None of theseC. Oxygen carrying capacity of whole blood is higher than plasmaD. Increase in CO2 concentration decreases O2 affinity of Hb Loading... 10. 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. 100%B. 75% C. 25% D. 50% Loading... Loading... Related NTS Results Post:Respiratory System Physiology Test 05 Online PreparationRespiratory System Physiology Test 04 Online PreparationRespiratory System Physiology Test 01 Online PreparationRespiratory System Physiology Test 07 Online PreparationRespiratory System Physiology Test 08 Online PreparationRespiratory System Physiology Test 09 Online PreparationRespiratory System Physiology Test 02 Online PreparationRespiratory System Physiology Test 06 Online Preparation
