medical MCQs – Page 112

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 Review each marked answer and report any item that may be outdated or unclear.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

2221. Leprosy bacilli can be grown in_________________?
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A. Foot paid on nine branded armadilo

B. Testes of guinea pig

C. Tail of guinea pig

D. Testes of albino rats

2222. Which is type II hypersensitivity ?
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A. Anaphylaxis

B. Immune complex mediated

C. Cytotoxic / cytolytic type

D. Delayed hypersensitivity

2223. Endotoxins differ from exotoxins in that endotoxins______________?
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A. are proteins

B. are highly antigenic

C. are heat labile

D. activate complement by the alternate pathway

2224. Which component of the cell wall is responsible________________?
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A. Boivin antigen

B. Region I

C. Region II

D. Region III

2225. Exotoxins are____________________?
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A. Protein compound

B. Lipid-polysaccharide complex

C. Lipoprotein

D. None

2226. The best skin disinfectant is________________?
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A. None of the above

B. Savlon

C. Chlorhexdine

D. Alcohol

2227. Example of immune complex hyper-sensitivity reaction is______________?
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A. Transfusion reaction

B. Contact dermatitis

C. Serum sickness

D. Atopic allergy

2228. Pneumococus can be differentiated from streptococcus by________________?
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A. Gram staining

B. Bile solubility

C. Type of hemolysis

D. Growth characteristics

2229. A child presents with infective skin lesions of the leg. Culture was done which showed gram positive cocci in chains and haemolytic colonies. Which of the following tests will best identify the organism ?
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A. Bile solubility

B. Bacitracin sensitivity

C. Optochin sensitivity

D. Cataslase positive

2230. Portion of immunoglobulin molecule with molecular weight to 50000_________________?
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A. J piece

B. Secretory piece

C. L chain

D. H chain

2231. Neurotoxin of tetanus acts on______________?
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A. Synapse

B. Brain

C. Muscle

D. Spinal card

2232. Actinomycosis is a_________________?
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A. Aerobic bacterial disease

B. Anaerobic bacterial disease

C. Aerobic fungal disease

D. Anaerobic fungal disease

2233. Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as______________?
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A. Active acquired immunity

B. Passive natural immunity

C. Passive acquired immunity

D. Natural active immunity

2234. Which of the following provides best gurantee for sterlization in the heat sterilizer ?
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A. Using chemical indicator strip or pouch

B. Recording a temperature/ pressure readings from sterilizer guage

C. Determining the ability of a sterilizer to kill the hepatitis B virus

D. Using a bacterial spore test

2235. Spores are disinfected by_______________?
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A. Glutaraldehyde

B. Betapropiolactone

C. Formaldehyde

D. Hexachlorophen

E. Both A & C

2236. Secondary response is mediated by_______________?
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A. IgE

B. IgA

C. IgM

D. IgG

2237. Most antibodies are produced in the________________?
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A. Thymus and the appendix

B. Spleen and the lymph nodes

C. Heart and the liver

D. Brain and the meninges

2238. Post streptococcal acute glomerulo nephritis is an example of________________?
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A. Type II hypersensitivity

B. Type III hypersensitivity

C. Type IV hypersensitivity

D. Type I hypersensitivity

2239. About N. gonorrhoea, all are true except__________________?
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A. Found exclusively in human beings.

B. Most common cause of urethritis is male

C. Wide spread axoregnic stains cause disseminated gonococcal infection

D. All stains are highly susceptible to penicillin

2240. Which of the following is not true of boiling water_____________?
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A. Can kill vegetative bacterial cells

B. Used for sterilizing surgical instruments

C. It can kill hepatitis B virus

D. Can kill mycobacterium tuberculosis

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