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1) Which one of the following statements define Bohr effect: a. A rise in P50 with a decrease in carbondioxide concentration b. A rise in P50 with a increase in carbondioxide concentration c. A rise in P50 with an increase in pH and decrease in PCO2 d. None of these
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2) Under certain conditions, an increase in P50 value of haemoglobin would bring which of these changes in the affinity of pigment to combine with oxygen: a. Fall b. Rise c. First rise and then fall d. No change
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3) A person will die of oxygen dificiency when under certain conditions his P50 value of Hb rises to 100 mm Hg, the reason being that: a. He cannot load enough oxygen in the lungs b. He can load enough oxygen but cannot unload it c. He can neither load nor unload oxygen in the lungs d. He suffers with degradation and cannot function normally
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4) The dissociation of oxyhaemoglobin would increase under a given concentration in blood in case: a. pH of blood raises b. pH of blood falls c. Concentration of CO2 falls d. Free fatty acid concentration falls in blood
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5) Our breathing rate will be lowest when we are: a. Playing football b. Eating c. Sleeping d. Delivering orders
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6) Oxygen percentage in the inhaled air is about: a. 21% b. 16% c. 79% d. 4%
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7) The blood absorbs oxygen in respiration with one of these: a. RBCs production in his body will step up b. WBCs c. Plasma d. Platelets
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8) The number of oxygen molecules associating with haemoglobin in man is: a. One b. Two c. Three d. Four
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9) The concentration of carbonic acid does not increase in our blood because of the presence of which of the following: a. Sodium ions b. Potassium ions c. Calcium ions d. None of these
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10) Cellular respiration in man and other vertebrates in includes: a. Embden Meyerhof pathway b. Kreb's cycle only c. Both (a) & (b) d. None of these
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11) Embden Meyerhof pathway is also called: a. Glycolysis that occurs anarobically b. Kreb's cycle that occur aerobically c. Transport of CO2 in the blood d. Electron transport system
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12) Which of these steps occur during Glycolysis: a. Activation of glucose b. Cleavage c. Oxidation d. All of these
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13) During activation of glucose in Glycolysis, the end product formed is: a. Fructose 1, 6 diphosphate b. Dihydroxyacetone phosphate c. Pyruvic acid d. Citric acid
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14) In the first state of Glycolysis called activation the endproduct formed from glucose is: a. Glucose-6-phosphate b. Fructose-6-phosphate c. Fructose, 1, 6, diphosphate d. None of these
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15) The enzyme converting glucose into glucose-6-phosphate during activation stage of Glycolysis is: a. Glucokinase b. Phosphoglucomutase c. Glucoisomerase d. None of these
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16) At the end of cleavage stage in Glycolysis we get: a. One molecule of 3-phosphoglyceraldehyde b. One molecule of dihydroxy acetone phosphate c. Both (a) & (b) d. None of these
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17) Enzyme bringing conversion of dihydroxy acetone phosphate into 3-phosphoglyceraldehyde is: a. Triose phosphate isomerase b. Aldolase c. Glyceromutase d. Triose mutase
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18) Enzyme bringing coversion of 3-phosphoglyceric acid into 2-phosphoglyceric acid is: a. Aldolase b. Phosphoglyceric mutase c. Enolase d. None of these
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19) Which of these enzymes is responsible for conversion of 2-phosphoglyceric acid into phosphoenolpyruvic acid: a. Enolase b. Aldolase c. Glycerokinase d. Glyceromutase
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20) At the end of Glycolysis how many molecules of ATP are synthesized: a. One molecule of 3-phosphoglyceraldehyde b. Two molecules c. Three molecules d. Four molecules
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21) Which of these substances are initially required to start Kerb's cycle: a. Acetyl CoA b. Oxaloacetic acid c. Both of these d. None of these
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22) To start the kreb's cycle, the pyruvic acid formed during Glycolysis is converted into: a. Acetyl CoA which reacts with oxaloacetic acid to form citric acid b. Alpha-ketogluteric acid which forms oxaloacetic acid c. Lactic acid that forms CO2 and H2O d. None of these
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23) During cellular respiration the electrons are received by which of the following substances: a. NAD b. FAD c. Cytochromes d. All of these
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24) Acetyl CoA used normally in Kreb's cycle is derived from pyruvic acid but it can also be formed from: a. Fatty acids b. Amino acids c. Both (a) & (b) d. None of them
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25) The number of ATP molecules of ATP synthesized after oxidation of one molecule of glucose is: a. 36 b. 38 c. 40 d. 42
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26) After completion of Glycolysis and Kreb's cycle we have a net gain of how many molecules of ATP when one molecule of glucose is oxidized: a. 36 b. 38 c. 40 d. None of these
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27) How much Cals are trapped in 38 molecules of ATP which are gained during oxidation of one molecule of glucose: a. 1,56,000 Cals b. 2,56,000 Cals c. 3,56,000 Cals d. 4,56,000 Cals
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28) Third bond of ATP on hydrolysis yields: a. ADP + 33,000 joules b. AMP + 33,000 joules c. ADP + 66,000 joules d. None of these
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29) An increase in body temperature during fever will: a. Increase the rate of our respiration b. Decrease the rate of our respiration c. First decrease then increase the rate of our respriation d. Not at all affect the rate of our respiration
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30) Below how much concentration of oxygen the pyruvic acid will not pass into Kreb's cycle and would convert into CO2 and alcohol: a. 1% b. 2% c. 3% d. 4%
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31) Respiratory quotent (RQ) means: a. Volume of CO2 given in unit time b. Volume of oxygen absorbed in unit time c. Ratio of carbondioxide liberated to that of oxygen taken d. None of these
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32) RQ for carbohydrates is: a. 1 b. 0.71 c. 0.8 d. None of these
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33) RQ for proteins is: a. More than 1.5 b. Less than 1 (0.71) c. 0.8 d. None of these
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34) RQ for fats is: a. 1.5 b. 1 c. 0.71 d. 0.8
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35) For a man using carbohydrates, proteins and fats in diet the figure for RQ is: a. 0.7 b. 0.85 c. 1.5 d. 0.75
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36) RQ for carnivores is: a. 0.75 b. 0.85 c. 0.96 d. None of these
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37) RQ for omnivores is: a. 1 b. 0.96 c. 0.75 d. 0.8
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38) RQ for herbivores is: a. 0.7 b. 0.75 c. 0.8 d. 0.96
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39) Imitation of throat and respiratory passage dueto smoking and dust allergy causes: a. Cough b. Tuberculosis c. Whooping cough d. None of these
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40) Reduced supply of oxygen to tissues is termed: a. Asphyxia b. AnoXIA c. Hypoxia d. Pyrexia
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41) Hypoxia may occur when a person goes to: a. Sea level b. High altitude c. Inside a mine d. Plane
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42) A person having anaemia is likely to suffer from: a. Anoxia b. Hypoxia c. Asphyxia d. None of these
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43) A person having lowering of general blood circulation is likely to suffer from: a. Anoxia b. Hypoxia c. Anaemia d. None of these
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44) Cyandies are deadly poisons because they: a. Decrease the transport of CO2 in the body b. Decrease the transport of O2 in the body c. Inactivate enzymes for cellular oxidation and create anoxia of hypoxia d. Have some other way of working
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45) Hypoxia accompanied by increased tension of CO2 in the body is: a. Anoxia b. Asphyxia c. Pneumonia d. None of these
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46) Asphyxia occurs on: a. owning b. High altitude c. Anaemic state d. None of these
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47) Which of these microorganisms cause whooping cough: a. Diplococeus pneumomae b. Mycobacterium tuberculosis c. Haemophilus pertussis d. None of these
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48) People especially women between age of 17-25 years are more susceptible for which of these respiratory diseases: a. Whooping cough b. Tuberculosis c. Cough d. None of these
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49) CO2 content in the inspired air on being markedly increased would: a. Increase the breathing movements b. Decrease the breathing movements c. Bring a state of first slow breathing followed by fast breathing d. Not at all affect the breathing rate
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50) Which of the following occur without enzymes: a. Breathing b. Internal respiration c. Both (a) & (b) d. None of these
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51) Integrative systems in our body are which of he following: a. Nervous b. Endocrine system c. Both (a) & (b) d. None of these
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52) Nervous system in organisms, in general, serve to: a. Regulate and control the activities of different organs in the body b. Link and coordinate the activities of various organs to ensure the integrity of the animal c. Help the organs to maintain unity with the environment d. All of these functions
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53) Functionally neurons may be: a. Afferent that carry impulses from periphery of the body to CNS b. Efferent that carry impulses from CNS to the effector organs c. Both (a) & (b) d. None of these
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54) Between afferent and afferent neurons are found: a. Internuncial neurons b. Neuromuscular junctions c. Synapses d. None of these
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55) Routing of signals to one of several alternative circuits, amplification of certain signals while reduction of others, integration of signals from diffuse sources, learning etc, are performed by: a. Inter-neurons b. Synapses c. Neuromuscular junctions d. None of these
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56) The distal ends of which of these neurons lie adjacent to blood stream: a. Afferent neurons b. Efferent neurons c. Inter-neurons d. Neurosecretory neurons
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57) Which of these neurons secrete neurohormones: a. Afferent b. Efferent c. Internununcial d. Neurosecretory
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58) Functional junction between dendritic region of one reuron or nerve axon ending of other neuron is termed: a. Synapse b. End plate c. Neuromuscular junction d. None of these
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59) Term synapse was applied by: a. Sir Charles Sherrington b. Charles Darwin c. Mclenan d. None of these
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60) Who established the physiological importance of synapses: a. Mclenan b. Sherrington c. Darwin d. None of these
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