medical MCQs – Page 110

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 Review each marked answer and report any item that may be outdated or unclear.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

2181. Teichoic acid is present in cell walls of_________________?
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A. Yeast

B. Gram negative bacteria

C. Gram positive bacteria

D. Protozoa

2182. Which organism causes prosthetic valve endocarditis within 60 days of surgery________________?
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A. Streptococcus Viridans

B. Fungus

C. Staphylococcus aureus

D. Staphylococcus epidermis

2183. The interaction of antigens with antibodies on the surface of a mast cel leads to degranulation and anaphylaxis. The mast cell granules produce anaphylaxis because they contain________________?
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A. Lysosomes

B. Vasoactive mediators

C. Proteolytic enzymes

D. Lymphotoxins

2184. First released immunoglobulin after primary immunization_______________?
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A. IgD

B. IgG

C. IgM

D. IgE

2185. L.D bodies are seen in_______________?
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A. Kalahazar

B. Sleeping sickness

C. Malaria

D. Toxoplasmosis

2186. The predominant immunoglobulin in saliva is_______________?
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A. IgG

B. IgE

C. IgA

D. IgD

2187. The prototype of Type II hypersensitivity reaction is__________________?
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A. Contact dermatitis

B. Auto immune hemolytic anemia

C. Arthus reaction

D. SLE

2188. Graft versus host reaction is caused by_________________?
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A. B-Lymphocytes

B. T-lymphocytes

C. Monocytes

D. Leukocytes

2189. The Process of attenuation can be achieved by all except___________________?
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A. Growing bacteria in adverse environment

B. Growing bacteria in unconventional host

C. Repeated cultures in artificial media

D. Serial passage in an experimental host

2190. Cold sterilization refers to the process of sterilization by use of______________?
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A. Infrared rays

B. Gamma rays

C. Ultra violet rays

D. Ultrasonic vibrations

2191. The serum concentration of which of the following human IgG subclass is maximum ?
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A. IgG3

B. IgG2

C. IgG4

D. IgG1

2192. Amoebic liver abscess can be diagnosed by demonstratig________________?
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A. Cysts in the intestine

B. Trophozoites in the feces

C. Cysts in the sterile pus

D. Trophozoites in the pus

2193. Delayed tuberculin test response is due to_______________?
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A. Histiocytes

B. T lymphocytes

C. Monocytes

D. B lymphocytes

2194. CD4 cells recognize the antigens in association with_____________?
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A. B-cell receptor

B. MHC II

C. MHC I

D. MHC III

2195. Common inhabitant of throat and tonsils is______________?
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A. Pneumococci

B. Staphylococci

C. Beta hemolytic streptococci

D. Alpha hymolytic streptococci (S. viridans)

2196. Fungal infection of human beings is called as_____________?
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A. Fungosis

B. Micromia

C. Mucorsis

D. Mycosis

2197. Zero growth rate is observed during one of the phase of the bacterial growth curve______________?
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A. Exponential growth

B. Decline

C. Lag

D. Stationary phase

2198. Opacity around colonies of Clostridium perfringens is due to_________________?
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A. Theta toxin

B. Desmolase

C. Lecithinase

D. Cytokinin

2199. Phagocytosis enhanced by coating the surface of antigen is called______________?
0

A. Opsonisation

B. CFT

C. De coding

D. Chemotaxis

2200. Rickettsiae__________________?
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A. Multiply within living cell

B. All of the above

C. Respond to tetracycline therapy

D. Transmitted by arthropod vectors

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