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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
During a cardia cycle, each ventricle pump out blood which is calledA. Stroke volumeB. Cardiac outputC. Beat volumeD. Both A and B |
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Answer» Correct Answer - D During a cardiac cycle, each ventricle pump out blood is called stroke volume of beat volume. |
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| 152. |
Go through the following statements (i) As smaller animals have the higher metabolic rate, their heart rate is higher than that of the larger animals (ii) Systoles of artria and ventricles never overlap while their diastoles always partly overlap. (iii) Cardiac cycle time is inversely proportional to the heart rate Which of these are correct ?A. (i) & (ii)B. (ii) & (iii)C. (i) & (iii)D. All are correct |
| Answer» Correct Answer - D | |
| 153. |
What is a myogenic heart beat ? In which animals is it found ? |
| Answer» Heart beat initiated supontaneously by a modified patch of heart muscle without external stimulation. It occurs in mollusks and vertebrates. | |
| 154. |
Consider the following four statements and select the correct option stating which ones are true (T) and which ones are false (F) ? (i) Proteins contribute 6-8 of the blood plasma (ii) Plasma contains very high amount of minerals (iii) Plasma without the clotting factors is called serum (iv) Glucose, amino acids, lipids, etc, are also present in the plasma as they are always in transit in the body.A. `{:("(i) (ii) (iii) (iv)"),("F F T T"):}`B. `{:("(i) (ii) (iii) (iv)"),("T F T T"):}`C. `{:("(i) (ii) (iii) (iv)"),("T T F F"):}`D. `{:("(i) (ii) (iii) (iv)"),("F F F T"):}` |
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Answer» Correct Answer - B Plasma contains small amounts of minerals like `Na^(+),Mg^(2+),Ca^(2+),HCO_(3)^(-),Cl^(-)` etc |
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| 155. |
In the evolution of animals a heart to pump the blood is found for the first time inA. AnnelidsB. RoundwormsC. ArthropodsD. Flat worms |
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Answer» Correct Answer - A In earthworm, an annelid, 4 pairs of thick muscular, pulsatile hearts are present. |
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| 156. |
the one devoid of muscular coat isA. VeinB. ArteryC. ArterioleD. Capillary |
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Answer» Correct Answer - D Capillaries are made up of a single layer of endothelium only and has no muscular wall. Maximum surface area of circulatory system is of capillaries. |
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| 157. |
Which of the following statements is incorrect ?A. Erythrocytes/RBCs are the least abundant of all the cells in bloodB. The number of RBCs in adult man per `mm^(3)` of blood is 5 million to 5.5 millionC. RBCs are formed in the red bone narrow in the adultsD. RBCs are enucleated in most of the mammals. |
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Answer» Correct Answer - A RBCs are the most abundant of all the cells in the blood, A heathy adult man has an average 5 millions to 5.5 millions of RBCs per `mm^(3)` of blood |
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| 158. |
In haemoglobin iron is present inA. Ferrous formB. Ferric formC. Metallic formD. Any form |
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Answer» Correct Answer - A In haemoglbin iron is present in ferrous `(Fe^(++))` state. |
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| 159. |
Which of the following is different from others in absence of muscular coatA. VeinsB. ArteriesC. CapillariesD. Arterioles |
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Answer» Correct Answer - C Capillary has no muscular wall. Its wall is made of a single layer of endothelial cell. |
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| 160. |
What is the oxidation state of iron in haemoglobin ?A. `Fe^(-)`B. `Fe^(2+)`C. `Fe^(3+)`D. `Fe^(4+)` |
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Answer» Correct Answer - B RBCs contain haemoglobin. It is four polypeptide chains and four haem groups attached to it or 4 atoms in iron in ferrous form `(Fe^(2+))`, thus it can react with 4 molecules of oxygen to form oxyhaemoglobin. |
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| 161. |
Which of the following is an agranulocyte ?A. BasophilB. NeutrophilC. LymphocyteD. Eosinophil |
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Answer» Correct Answer - C Leucocytes that lack granules in their cytoplasm are known as agranulocytes. Since lymphocytes do not have granules in their cytoplasm so, they are called agranulocytes. |
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| 162. |
In order for the blood to flow from right ventricle to left ventricle in mammalian heart, it must flow throughA. Right ventricle, pulmonary arteries Lungs Pulmonary veins, Left atriumB. Right ventricle, Pulmonary veins, Lungs Pulmonary arteries, Left atriumC. Right ventricle, Right atrium lungs pulmonary veins Left atriumD. Right ventricle , systemic aorta lungs pulmonary veins left atrium |
| Answer» Correct Answer - A | |
| 163. |
What is blood ? Describe its components. |
| Answer» Blood is an opaque, mobile fluid connective tissue. | |
| 164. |
In order for the blood to flow right atrium to left ventricle in mammalian heart, it must flow throughA. ReninB. OxytocinC. Antidiuretic hormoneD. Atrial natriuretic factor |
| Answer» Correct Answer - D | |
| 165. |
In humans, blood passes from the post caval to the diastolic right atrium of heart due toA. pushing open of the venous valvesB. suction pullC. stimulation of the sino auricular nodeD. pressure difference between the post caval and atrium |
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Answer» Correct Answer - D (d) Due to the pressure difference between the post caval and atrium, the blood passes from the post caval to the diastolic right atrium. Because the action of heart includes contractions and relaxations of the atria and ventricles. The dynamics of blood flow in blood vessels is no exception and blood flows through the blood vessels along a pressure gradient, always moving from higher to lower pressure areas. |
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| 166. |
In humans, blood passes from the post caval to the diastolic right atrium of heart due toA. Pressure difference between the post caval and atriumB. Pushing open of the venous valvesC. Suction pullD. Stimulation of the sino auricular node |
| Answer» Correct Answer - A | |
| 167. |
If all chordae tendinae are weakened or severed , the immidiate effect would beA. Fall in diastolic pressure and unaffectedsystolic pressureB. Diastolic pressure unaffected but fall in systolic pressureC. Fall in both diastolic and systolic pressureD. Both diastolic and systolic pressure unaffected |
| Answer» Correct Answer - B | |
| 168. |
In veins, valves are present to check backward flow of blood flowing atA. atmospheric pressureB. high pressureC. low pressureD. all of these |
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Answer» Correct Answer - C Veins brings blood from different body parts to the heart. The flow of blood in veins is not so fast because the blood in veins is under low pressure. Veins posses valves which present backward flow of blood. |
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| 169. |
Valves are found in veins to check the backflow of blood flowing underA. Low pressureB. High pressureC. No pressureD. Very high pressure |
| Answer» Correct Answer - A | |
| 170. |
Match I with column II `{:("Column "I, "Column "II), (a. " Capillaries", (i)" Valves"),(b." Veins", (ii)" Smooth muscles"),(c." Aorta", (iii)" Narrowest blood vessels"),(d." Tunica media", (iv)" Elastic artery"):}` Select the alternative which shows the correct matching.A. a(iv), B(iii), c(i), D(ii)B. a(iii), b(iv), c(ii), d(i)C. a(iii), b(i), c(iv), d(ii)D. a(ii), b(i), c(iv), d(iii) |
| Answer» Correct Answer - C | |
| 171. |
Narrowing of which of the following heart valves would cause blood to accumulate in the left atrium ?A. Tricuspid valveB. Aortic valveC. Mitral valveD. Pulmonic valve |
| Answer» Correct Answer - C | |
| 172. |
Indicate whether the following statements are true or false : (i) Fish heart contains only oxygenated blood. (ii) Closure of A-V valves produces the second heart sound. (iii) The vagus nerve retards the heart rate. (iv) The S-A node is the pacemaker of the heart. (v) Columnae carneae occur in the auricles. (vi) Purkinje fibres are nerve fibres present in the heart wall. |
| Answer» (i) Veins, (ii) Diastole , (iii) Oxygenated blood , (iv) Lymph , (v) Kidneys. | |
| 173. |
Assertion. Veins have valves which open away from the heart. Reason. Veins distribute blood to the various parts of the body.A. If both A and R are true and R is the correct explantion of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is falseD. If both A and R are false. |
| Answer» Correct Answer - d | |
| 174. |
Consider the following statement about biomedical technologiesA. During open heart surgery blood is circulated in the heart lung machineB. Blockage in coronary arteries is removed by angiographyC. Computerised axial tomography (CAT) shows detailed internal structures as seen in a section of bodyD. X-rays provides clear and detailed images of organs like prostate gland and lungs |
| Answer» Correct Answer - A | |
| 175. |
Give the term used for rise in the R.B.C. count. |
| Answer» Correct Answer - Polycythemia. | |
| 176. |
A : Endocardium provides a smooth lining for the inside of the heart and covers the valves of the heart. R : Endocardium is continuous with the endothelial lining of the large blood vessels associated with the heart and the rest of the cardiovascular system.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4). |
| Answer» Correct Answer - B | |
| 177. |
The duration of cardiac cycle isA. 0.8 secondsB. 80 secondsC. 8 secondsD. 72 seconds |
| Answer» Correct Answer - A | |
| 178. |
Which one of the following leucocytes transforms into macrophagesA. EosinophilB. BasophilC. MonocyteD. Lymphocyte |
| Answer» Correct Answer - C | |
| 179. |
A : Elevated levels of `Na^(+)` increases the heart rate and contractility. R : Elevated `Na^(+)` level increase the excitability of SA node.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4). |
| Answer» Correct Answer - D | |
| 180. |
In human beings, duration of cardiac cycle isA. `0.08` secondB. `0.8` secondC. `0.5` secondD. `8.0`second |
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Answer» Correct Answer - B In human beings duration of cardiac cycle is 0.8 second. |
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| 181. |
SA node acts as a pacemaker of the heart because of the fact that itA. is capable of generating impulses spontaneouslyB. has rich sympathetic innervationC. has poor cholinergic innervationD. generates impulses at the highest rate |
| Answer» Correct Answer - D | |
| 182. |
Consider the following four statement (i) - (iv) and select the correct option. (i) SA node is natural pacemaker of heart (ii) Human heart has inter-auricular foramen (iii) Right atrioventricular valve is a semilunar value (iv) Normal systolic and diastolic pressure of human is 120 and 60 mm Hg respectively.A. `{:("(i) (ii) (iii) (iv)"),("F F T F"):}`B. `{:("(i) (ii) (iii) (iv)"),("F F T T"):}`C. `{:("(i) (ii) (iii) (iv)"),("T T F T"):}`D. `{:("(i) (ii) (iii) (iv)"),("T F F F"):}` |
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Answer» Correct Answer - D SA node is natural pacemaker of heat. Human heart has inter-auricular septum. Right atrioventricular valve is a tricuspid valve. Normal systolic and diastolic pressure of humans is 120 mm Hg and 80 mm Hg respectively. |
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| 183. |
The duration of cardiac cycle isA. `0.8 "sec"`B. `0.8 mu "sec"`C. `0.8 "sec"`D. `0.008 "sec"` |
| Answer» Correct Answer - A | |
| 184. |
Blood leaving liver and moving to the heart has usually high concentration ofA. BileB. GlycogenC. Amino acidsD. Urea |
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Answer» Correct Answer - D Blood leaving liver and moving th heart will have more concentration of urea. |
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| 185. |
The duration of cardiac cycle isA. 0.8 secB. `0.8 mu ` secC. 0.08 secD. 0.008 sec |
| Answer» Correct Answer - A | |
| 186. |
A : The resting heart rate, about 75/minutes, usually is lower than the autorhythmic rate of the SA node (90 - 100 beats/minute). R : At rest condition, the parasymphathetic effects dominate.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4). |
| Answer» Correct Answer - A | |
| 187. |
Number of leucocytes in decreasing order in human blood isA. Eosinophils `gt` basophils `gt` neutrophilsB. Neutrophils `gt` eosinophils `gt` basophilsC. Basophils `gt` eosinophils `gt` NeutrophilsD. Eosinophils `gt` Neutrophils `gt` basophils |
| Answer» Correct Answer - B | |
| 188. |
Number of leucocytes in decreasing order in human blood isA. Eosinophils `gt` Basophils `gt` NeutrophilsB. Basophils `gt` Eosinophils `gt` NeutrophilsC. Neutrophils `gt` Eosinophils `gt` BasophilsD. Eosinophils `gt` Neutropils `gt` Basophils |
| Answer» Correct Answer - C | |
| 189. |
Blood leaving liver and moving to the heart has usually high concentration ofA. UreaB. BileC. GlucoseD. Erythrocytes |
| Answer» Correct Answer - A | |
| 190. |
Circulatroy system does not help inA. Transport of respiratory gasesB. Transport of hormonesC. Transport of food materialsD. Transfer of impulses |
| Answer» Correct Answer - D | |
| 191. |
Granulocytes are formed inA. ThymusB. Bone marrowC. KidneyD. Liver |
| Answer» Correct Answer - B | |
| 192. |
Largest heart is found inA. ElephantB. GiraffeC. CrocodileD. Lion |
| Answer» Correct Answer - A | |
| 193. |
Find the correct descending order of percentage proportion of leucocytes in human blood.A. Neutrophils `rarr` Basophils `rarr` Lymphocytes `rarr` Acidophils (Eosinophils) `rarr` MonocytesB. Monocytes `rarr` Neutrophils `rarr` Lymphocytes `rarr` Acidophils `rarr` BasophilsC. Neutrophils `rarr` Lymphocytes `rarr` Monocytes `rarr` Acidophils `rarr` BasophilsD. Lymphocytes `rarr` Acidophils `rarr` Basophils `rarr` Neutrophils `rarr` Monocytes |
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Answer» Correct Answer - C Neutrophils `(40 - 70 %)rarr` Lymphocytes `(20 - 40 %) rarr` Monocytes `(2- 10 %) rarr` Acidophils `(1-6 %) rarr` Basophils `(0-1 %)` |
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| 194. |
Name different types of granulocytes. Give the functions of one which constitutes maximum percentage of the total leucocytes. |
| Answer» Granulocytes are neutrolphils, basophils and eosinophils (acidophils). Neutrophils exist in maximum percentage, i.e., 60-70%. They are the chief phagocytes that engulf the microbes. | |
| 195. |
(a) Which leucocytes are the largest in size ? What is their major role ? (b) Which leucocytes occur in maximum percentage in the blood ? What is their major role ? (c ) Name the leucocytes which have coarse granules, S-shaped nucleus and take basic stain. What is their role ? |
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Answer» (a) Monocytes. They are phagocytic. (b) Neutrophils. They are phagocytic. (c )Eosinophils. (d) Basophils. They release heparin and histamine. |
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| 196. |
A vein differs from the artery in havingA. Narrow lumenB. Strong cuticular and muscular wallC. Valves to control direction of flowD. Dark pigmental wall |
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Answer» Correct Answer - C Vein contain valves to prevent back flow of blood. |
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| 197. |
Go through the following statements (i) Vagus nerve decreases the rate of impulse formation from the SA node and its conduction (ii) As the human heart is myogenic in nature, the rate of formation and conduction of cariac impulse cannot be changed by the action of nerves (iii) The end of T-wave in ECG marks the end of systole. (iv) If the P-wave in ECG is inverted , it indicates that SA node fails to initiate impulse and the atrial muscle depolarises by the impulse originating in A.V. node. Whic of these are correct ?A. (i),(ii) & (iii)B. (i),(iii) & (iv)C. (ii),(iii) & (v)D. All are correct |
| Answer» Correct Answer - B | |
| 198. |
The ratio of RBC to WBC in human isA. `6:1`B. `60:1`C. `600:1`D. `6000:1` |
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Answer» Correct Answer - C The ratio of RBC to WBC in human is `600:1.` |
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| 199. |
Mark the odd one w.r.t. Characteristic features of human RBCA. BiconcaveB. CircularC. OvalD. Non nucleated |
| Answer» Correct Answer - C | |
| 200. |
Which of the following blood groups is a universal recipent in the blood transfusion ?A. Group ABB. Group BC. Group AD. Group O |
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Answer» Correct Answer - A Persons having blood group AB, do not have antibodies in their plasma, therefore, they are universal recipients. |
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