medical MCQs – Page 279

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 Review each marked answer and report any item that may be outdated or unclear.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

5561. Which of the following is not used as disinfectant________________?
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A. 1-2% cetrimide

B. 2% Lysol

C. 100% alcohol

D. 5% chloroxylene

5562. The overall effect of HIV is to gradually impair the immune system by interference with______________?
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A. Plasma cells

B. Macrophages

C. Helper T lymphocytes

D. Natural killer cells

5563. Toxoids are_________________?
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A. non-antigenic and toxic

B. non-antigenic and non-toxic

C. antigenic and non-toxic

D. antigenic and toxic

5564. The time gap between appearance of Kopliks spot and cutaneous rash in measles is________________?
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A. 24 Hrs

B. 3-4 days

C. 10 days

D. 2 weeks

5565. Characteristic feature of retrovirus is_____________?
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A. Restriction endonuclease

B. DNA polymerase

C. Ribonuclease

D. Reverse transcriptase

5566. Hepatitis C virus belongs to which one of the following virus groups ?
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A. Flavi viruses

B. Picorna viruses

C. Herpes viruses

D. Hepadana viruses

5567. In patients with asthma due to an allergic cause the serum levels of which immunoglobulin increase____________________?
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A. IgE

B. IgD

C. IgM

D. IgA

5568. In penicillin allergy, penicillin acts as a_______________?
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A. Carrier

B. Super antigen

C. Toxin

D. Hapten

5569. Human immunoglobulins are divided based on_____________?
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A. Structural differences

B. Complemented fixation

C. Functional differences

D. None of the above

5570. EBV causes all except_________________?
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A. Papilloma

B. Infectious mononucleosis

C. Carcinoma of nasopharynx

D. Burkitts lymphoma

5571. Cold sterilization refers to the process of sterilization by use of____________________?
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A. Infrared rays

B. Gamma rays

C. Ultrasonic vibrations

D. Ultra violet rays

5572. Anaphylaxis refers to the________________?
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A. Severe reaction resulting from sensitivity to common allergens

B. Severe reaction following primary injection of Protein solutions

C. Severe reaction following the injection of protein solution in a sensitized individual

D. State of immunity developed by repeated injections of any foreign substance

5573. Chemotactic cytokine is_________________?
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A. IL-8

B. TNF

C. IL-6

D. IL-1

5574. Viron is defined as______________?
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A. A smallest particle similar to virus

B. Extracellular infectious virus particle

C. Smallest virus

D. None of the above

5575. Components of innate immunity that are active against viral cells includes______________?
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A. NK Cells

B. Cytotoxic T cells

C. B cells

D. Memory B cells

5576. Which of the following lesions is NOT an infection from human papilloma virus ?
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A. Focal epithelial hyperplasia

B. Condyloma acuminatum

C. Keratoacanthoma

D. Verruca vulgaris

5577. Sunlight acts as sterilizing agent because_________________?
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A. Heat

B. short wave lenght

C. Long wavelength

D. Ozone

5578. A sporangium contains_______________?
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A. Spherules

B. Oidia

C. Chlamydospores

D. porangiospores

5579. T cells multiplication is stimulated by_______________?
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A. Heat

B. Phytohaemagglutinin

C. Bovine serum

D. Macrolin

5580. Which is false about Wucheraria bancrofti_________________?
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A. Causes filariasis

B. Man and anapheles mosquito are hosts

C. Body is slender and long

D. Terminal nuclei absent

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