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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.
1. |
Disease like malaria and filariasis are transmitted through insect vectors. Vectors can be controlled by introducing fishA. LabeoB. GambusiaC. HilsaD. Catla |
Answer» Correct Answer - B | |
2. |
Disease restriction to particular area or population isA. EndemicB. EpidemicC. PandemicD. Notifiable |
Answer» Correct Answer - A | |
3. |
T-lymphocytes mature inA. bone marrowB. spleenC. pancreasD. thymus |
Answer» Correct Answer - A | |
4. |
Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason : Interferons stimulate inflammation at the site of injury.A. if both are true with reason being correct explanationB. both true but reason is not correct explanantionC. assertion is true but reason is wrongD. and both are wrong |
Answer» Correct Answer - D | |
5. |
Antibodies are produced byA. HistiocytesB. Mast cellsC. Plasma cellsD. Fibroblasts |
Answer» Correct Answer - C | |
6. |
Number of antibodies produced per day during an infection can beA. 2 trillionB. 20 trillionC. 200 trillionD. 2000 trillion |
Answer» Correct Answer - B | |
7. |
Thpoid is ……. DiseaseA. ViralB. FungalC. BacterialD. Protozoan |
Answer» Correct Answer - C | |
8. |
Which of the following is STD?A. CancerB. TrichomoniasisC. PneumoniaD. malaria |
Answer» Correct Answer - B | |
9. |
Which one is not an STDA. Huntington diseaseB. GonorrhoeaC. AIDSD. Syphilis |
Answer» Correct Answer - A | |
10. |
Antibodies are produced byA. leucocytesB. lymphocytesC. erythrocytesD. none of these |
Answer» Correct Answer - B | |
11. |
Name two diseases whose spread can be controlled by the eradication of Aedes mosquitoes. |
Answer» Dengue fever, Chikungunia. | |
12. |
Aedes spreadsA. MalariaB. DengueC. Sleeping sicknessD. Kala-azar |
Answer» Correct Answer - B | |
13. |
Which of the following pairs correctly matches a disease and a pathogen causing it ?A. Typhoid - Salmonella typhiB. Pneumonia - Haemophilus pneumoniaeC. Malaria - Ascaris lumbricoidesD. Ringworm - Entamoeba histolytica |
Answer» Correct Answer - A Typhoid - Salmonella typhi Pneumonia - Streptococcus pneumoniase Malaria - Plasmodium Ringworm - Trichophyton |
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14. |
Which of the following diseases is transmitted by the bite of the female mosquito vector ?A. FilariasisB. AmoebiasisC. TyphoidD. Pneumonia |
Answer» Correct Answer - A | |
15. |
Aedes mosquito is a vector ofA. malariaB. filariasisC. choleraD. dengue |
Answer» Correct Answer - D | |
16. |
How do nonspecific defence mechanisms resist infection? |
Answer» By blocking the entry of pathogens into the body or by destroying the microbes without anitbody generation. | |
17. |
Which one of the following provide nonspecific pathogen defence for the body?A. T-cellsB. B-cellsC. PhagocytesD. Stem cells |
Answer» Correct Answer - C | |
18. |
Which of the following provides immunity to digestive tract against antigen?A. IgAB. IgDC. IgGD. IgE |
Answer» Correct Answer - A | |
19. |
Which of the following is a water borne disease ?A. T.B.B. HepatitisC. small poxD. Cancer |
Answer» Correct Answer - B | |
20. |
Which is not a water borne disease ?A. AsthmaB. CholeraC. AmoebiasisD. Typhoid |
Answer» Correct Answer - A | |
21. |
A person suspected to suffer from AIDS isadvised to undergo diagnostic testA. ultrasoundB. WIDALC. MRID. ELISA |
Answer» Correct Answer - D | |
22. |
Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host. Reason : A bone marrow transplant given to a patient with genetic immunodeficiency is an example of artificially acquired active immunity.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertin is true but reason is false.D. If both assertion and reason are false. |
Answer» Correct Answer - B | |
23. |
What is it that prevents a child to suffer from a disease he/she is vaccinated against ? |
Answer» In vaccination, a preparation of antigenic proteins of pathogen or inactivated/weakened pathogen are introduced in the body against which body produces antibodies. The latter prevent a child to suffer from the disease. | |
24. |
Common cold is not cured by antibiotics because it isA. caused by a virusB. caused by a Gram-positive bacteriumC. caused by a Gram-negative bacteriumD. not an infections disease |
Answer» Correct Answer - A | |
25. |
Common cold is not cured by antibiotics because it isA. Caused by a virusB. Caused by a Gram-positive bacteriumC. Caused by a Gram-negative bacteriumD. Not an infectious disease |
Answer» Correct Answer - A | |
26. |
Common cold differs from pneumonia in, thatA. pneumonia is a communicable disease, whereas the common cold is a nutritional deficiency diseaseB. pneumonia can be prevented by a live attenuated bacterial vaccine, whereas the common cold has no effective vaccineC. pneumonia is caused by a virus, while the common cold is caused by the bacterium Haemophilus influenzaeD. pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs |
Answer» Correct Answer - D Pneumonia is caused by the bacteria Diplococcus pneumoniae which infects the alveoli of lungs. It generally spreads through the sputum of patient. Fever, cold and difficulty in breathing are some common symptoms of pneumonia. It can be treated by the antibiotics Common cold is caused by a variety of viruses, most commonly by rhinovirus (RNA virus). It spreads through droplet infection. It affects the upper respiratory tract but not the lungs Nasal and bronchial irritation, sneezing and coughing are some common symptoms of cold. |
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27. |
Which one of the following statements is correct with respect of immunity ?A. Antibodies are protein molecules, each of which has four light chainsB. Rejection of a kideny graft is, the function of B-lymphocytesC. Preformed antibodies need to be injected to treat the bite by a viper snakeD. The antibodies against small pox pathogen are produced by T-lymphocytes |
Answer» Correct Answer - C | |
28. |
Which one of the following is not a property of cancerous cells whereas the remaining three areA. They do not remain confined in the area of formationB. They divide in an uncontrolled mannerC. They show contact inhibitionD. They compete with normal cells for vital nutrients |
Answer» Correct Answer - C | |
29. |
Which one of the following statements is correct with respect of immunity ?A. Preformed antibodies need to be injected to treat the bite by a viper snakeB. The antibodies against smallpox pathogen are produced by T-lymphocytesC. Antibodies are protein molecules, each of which has four light chainsD. Rejection of a kidney graft is the function of B-lymphocytes |
Answer» Correct Answer - A In artificially acquired passive immunity, preformed antibody in an immune serum of some other animal is introduced into the body. As the antivenum used to treat snake bites. In this case, the body does not produce any antibodies. Antibody is a protein molecule having two light chain and two heavy chain. B-cells recognise and bind antigens and may differentiate to memory cell or plasma cells (produce antibody). T-cells causes transplant rejection. |
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30. |
In which one of the following options the two examples are correctly matched with their particular type of immunity ?A. `{:("Examples" , "Tytpe of immunity"),("Polymorphonuclear leukocytes and monocytes ","Cellular barriers"):}`B. `{:("Examples" , "Tytpe of immunity"),("Anti-tetanus and anti-snake bite injections ","Active immunity"):}`C. `{:("Examples" , "Tytpe of immunity"),("Saliva in mouth and tears in eyes ","Physical barriers"):}`D. `{:("Examples" , "Tytpe of immunity"),("Mucus coating of epithelium Physiologic lining the urinogential tract and al barriers the HCl in stomach ","Physiologic al barriers"):}` |
Answer» Correct Answer - A Phagocytosis is an important feature of cellular innate immunity, performed by cells called phagocytes that engulf or eat pathogens or foreign particles. Common examples of these phagocytes are monocytes, macrophages, neutrophil granulocytes (often referred to as polymorphonuclear leukocytes or PMN or PML, because of the varying shapes of nucleus), tissue dendritic cells, mast cells etc. Anti-tetanus and anti snake bite injections are examples of passive immunity. |
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31. |
Principle of vaccination or immunisation is :- |
Answer» Correct Answer - Memory | |
32. |
In which one of the following options the two examples are correctly matched with their particular type of immunity? |
Answer» Correct Answer - 4 Anti tetanus and anti-snake bite injections - passive immunity. Saliva & tears physiological barriers. Mucus coating - physical barrier. |
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33. |
Read the following four statements (A-D) (a) Colostrum is recommended for the new born because it is rich in antigens (b) Chikengunya is caused by a Gram negative bacterium (c) Tissue culture has proved useful in obtaining virus-free plants (d) Beer is manufactured by distillation of fermented grape juice How many of the above Statements are wrongA. FourB. OneC. TwoD. Three |
Answer» Correct Answer - D Colostrum is rich in antibodies. Chikungunya is caused by Alphavirus and transmitted to humans by Aedes mosquito. Beer and wine are produced without distillation, whereas whisky, brandy and rum are produced by distillation. Thus three statements are wrong. |
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34. |
Select the correct statement with respect to diseases and immunisationA. If due to some reason B-and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen.B. Injection of dead/inactivated pathogens causes passive immunityC. Certain protozoans have been used to mass produce hepatitis B vaccineD. Injection of snake antivenom against snake bite is an example of active immunisation |
Answer» Correct Answer - A Using recombinant DNA technology. Hepatitis B vaccine has been produced from yeast. Injection of snake antivenom which contains preformed antiboies, is an example of passive immunisation. Injection of dead/inactivated pathogens leads to developments of active immunity. |
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35. |
Select the correct statement about diseases and immunisationA. if due to some reason , B-and T- Lymphocytes are damaged the body will not produce antibody against a pathogenB. injection of dead /inactivated pathogens causes passive immunityC. certain protozoans have been used in mass production of hepatitis B vaccineD. injection of snake antivenom against snake bite is an example of active immunisation |
Answer» Correct Answer - A | |
36. |
Aedes aegypti is a vector for:A. both dengue and yellow feverB. dengue feverC. yellow feverD. Japanese encephalitis |
Answer» Correct Answer - A | |
37. |
Which two diseases are transmitted by the bite of Aedes aegypti mosquito? Name the viruses which cause these diseases. |
Answer» (i) Chikungunya - It is causes by Alpha virus (Chikungunya virus). (ii) Dengue fever - It is caused by flavi-ribo virus. |
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38. |
Immune response to first encounter with an antigen is called:A. primary immune responseB. secondary immune responseC. memoryD. clonal selection |
Answer» Correct Answer - A | |
39. |
Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin ?A. MonocytesB. NeutrophilsC. BasophilsD. Eosinophils |
Answer» Correct Answer - C | |
40. |
Identify and select the right option giving source and use |
Answer» Correct Answer - d | |
41. |
Assertion. Histamine is related with allergic and inflammatory reactions. Reason. Both these drugs suppress brain funciton.A. If both A and R are true and R is the correct explanation 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 false.D. If both A and R are false. |
Answer» Correct Answer - A | |
42. |
Assertion . Histamine is involved in allergic and inflammatory reactions . Reason. Histamine is vasodilatorA. if both are true with reason being correct explanationB. both true but reason is not correct explanantionC. assertion is true but reason is wrongD. and both are wrong |
Answer» Correct Answer - A | |
43. |
One of the inflammatory reactions induced by histmines is:A. vasconstriction of blood vesselsB. vasolidation of peripheral blood vesselsC. increased vascular permeabilityD. accelerated blood clotting |
Answer» Correct Answer - D | |
44. |
A person stung with bee is adminsitered penicillin . The person dies. Death may be due toA. Anaphylactic shockB. Prophylactic shockC. AutoimmunityD. Sedation |
Answer» Correct Answer - A | |
45. |
Edward Junner prepared the vaccine for smallpox virus by using:A. attenuated cowpox virusB. attenuated smallpox virusC. large does of smallpox virusD. small does of smallpox virus |
Answer» Correct Answer - A | |
46. |
When a person dies after stung by a bee followed by the administration of penicillin, death may be due toA. prophylactic shockB. anaphylactic shockC. autoimmunityD. sedation |
Answer» Correct Answer - B | |
47. |
Assertion. Second infection of the same pathogen is quickly eliminated. Reason. Preformed memory B and T-cells elicit a quick and vigorous attack on pathogens.A. If both A and R are true and R is the correct explanation 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 false.D. If both A and R are false. |
Answer» Correct Answer - A | |
48. |
Which of the following is a set of bacterial diseases?A. Cholera, typhoid and mumpsB. Diphtheria, leprosy and plagueC. Malaria, mumps and poliomyelitisD. Tetanus, tuberculosis and measles |
Answer» Correct Answer - B | |
49. |
Which one of the following sets includes bacterial diseases ?A. Tetanus, tuberculosis, measiesB. Diphtheria, leprosy, plagueC. Cholera, typhoid, mumpsD. Malaria, mumps, poliomyelitis |
Answer» Correct Answer - D | |
50. |
A substance (low molecular weight protein) produced by host cells in response to viral infection and protect other cells against further viral infection isA. AntibodyB. AntigenC. PhytotoxinD. Hormone |
Answer» Correct Answer - A | |