medical MCQs – Page 111

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

2201. Commonest mycobacterial infection in tropical countries_______________?
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A. M. leprae

B. Kansasi

C. M. avium intracellulare

D. M. tuberculosis

2202. Which of the following is obligate aerobe ?
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A. Pseudomonas aerogenosa

B. coli

C. diphtheria

D. Proteus

2203. Adjuvant given along with antigens are going to________________?
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A. Reduce the antigenicity

B. Increase toxigenicity

C. reduce the toxigenicity

D. Increase antigenicity

2204. Sterilisation control for moist heat is or The efficacy of the moist heat sterilization technique commonly used to sterlilize laboratory ware and culture media is tested by using_______________?
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A. using Bacillus stearo thermo philus

B. Using non-pathogenic strain of clostridium tetani

C. Using chemical indicator

D. Using methylene blue

2205. Graves disease is an example of type immunologic response_________________?
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A. Type IV

B. Type III

C. Type II

D. Type I

2206. Glasswares are sterilised by______________?
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A. Formaldehyde

B. Incineration

C. Autoclaving

D. Hot air oven

2207. Sterilization is a process in which_________________?
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A. Deactivate all spores and dill pathogenic organism

B. Kill all non-pathogenic micro-organisms in the environment

C. Kill all pathogenic micro-organisms

D. Deactivate all pathogens not spores

2208. Prozone phenomenon is due to______________?
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A. Excess antibody

B. Disproportionate antigen antibody levels

C. Excess antigen

D. Hyper immune reaction

2209. Same or closely related antigens present in different biological species are known as________________?
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A. Suquestrated antigens

B. Heterophile antigens

C. Haptens

D. Isoantigens

2210. Immunoglobulin consists of________________?
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A. 1 light, 1 heavy chain

B. 1 heavy, 2 light chains

C. 3 light, 1 heavy chain

D. 2 light, 2 heavy chains

2211. In transmission of malaria, mosquito bite transfers_______________?
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A. Gametocyte

B. Sporozoite

C. Merozoite

D. Hypnozoite

2212. By using phase contrast microscope_______________?
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A. Internal metabolic activities can be observed

B. Internal structures are differentiated in living cells

C. Internal structures are differentiated in dead cells

D. External capsule formation can be observed

2213. Cleavage of IgG molecule by Papin gives rise to:One Fc fragment and two Fab fragments_______________?
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A. Two Fc fragment and one Fab fragment

B. One Fc fragment and four Fab fragments

C. Two Fc fragments and two Fab fragments

D. One Fc fragment and two Fab fragments

2214. Immunoglobulin implicated in atopy and anaphylaxis is_______________?
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A. IgE

B. IgA

C. IgM

D. IgG

2215. Sterilisation is______________?
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A. Only pathogenic micro-organisms killed

B. All pathogenic and non-pathogenic microorganisms killed

C. Pathogens killed but spores are not affected

D. Non-pathogenic killed

2216. IL-1 is produced by_________________?
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A. Helper B cells

B. Helper T cells

C. Macrophages

D. Monocytes

2217. Staphylococcal toxic shock syndrome (SSS syndrome) is due to______________?
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A. Enterotoxin B

B. Enterotoxin A

C. Enterotoxin F

D. Enterotoxin D

2218. Which of the following is not used as disinfectant________________?
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A. 2% Lysol

B. 5% chloroxylene

C. 100% alcohol

D. 1-2% cetrimide

2219. Most sensitive test for antigen detection is_______________?
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A. Passive hemaglutination

B. ELISA

C. Radioimmuno Assay

D. Immunoflourescence

2220. Haptane is_______________?
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A. High molecular protein

B. Carrier required for specific antibody production

C. None of the above

D. Same as epitopes

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