medical MCQs – Page 107

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 Review each marked answer and report any item that may be outdated or unclear.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

2121. The minimum time required for the sterilization of surgical instruments by moist heat at 134C is__________________?
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A. 30 minutes

B. 15 minutes

C. 3 minutes

D. 60 minutes

2122. The difference between sterilization and disinfection is that_______________?
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A. Sterilization involves chemicals and disinfection involves physical methods

B. Disinfection kills all spores but sterilization does not

C. Sterilization kills all spores but disinfection does not

D. Sterilization is easier to achieve

2123. Selective media for MYCOBACTERIUM _____________?
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A. Sabourauds medium

B. Lowenstein Jensen medium

C. Agar agar

D. Loefflers serum slope

2124. Bacterial species which is protective or beneficial to the host is_______________?
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A. Streptococcus sanguis

B. Spirochetes

C. Treponema denticola

D. Porphyromonas gingivalis

2125. Sporulation occurs in__________________?
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A. Log phase

B. Lag phase

C. Stationary phase

D. Decline phase

2126. Synthesis of antibodies in plasma cells occurs in_________________?
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A. Golgi body

B. Endoplasmic reticulum

C. Mitochondria

D. Nucleus

2127. Aflatoxins are produced by________________?
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A. Aspergillus fumigatus

B. Aspergillus niger

C. All of the above

D. Aspergillus flavus

2128. The commonly used fluorescent dye in the detection of tubercie bacilli________________?
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A. Congo red

B. Acridine orange

C. Thioglavin

D. Auramine and Rhodamine

2129. The term animalcules to oral microorganisms is given by__________________?
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A. Socranci

B. Leumenhoek

C. Wd miller

D. Robertson

2130. Antibiotic sensitivity and resistance of micro organisms is determined by________________?
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A. DNA probe

B. Direct microscopy

C. ELISA

D. Culture

2131. T cell matures in______________?
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A. Lymph node

B. Payers patch

C. Thymus

D. Busra of Fabricius

2132. Complement factor through which common pathway begins___________________?
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A. C3

B. C2

C. C5

D. Protein B

2133. Which of the following is a live vaccine_____________?
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A. 17 D

B. Salk

C. Hepatitis

D. HDCV

2134. The distinguishing characteristic of a positive delayed type hypersensitivity skin test is______________?
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A. Necrosis

B. Erythema

C. Vasculitis

D. Induration

2135. Borelia vincenti is a______________?
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A. Mycobacteria

B. Mycoplasma

C. Chlamydia

D. Spirochaete

2136. The type of immunoglobulin most commonly increased in multiple myeloma is_______________?
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A. IgA

B. IgD

C. IgM

D. IgG

2137. An elderly male patient presented with fever, chest pain, and dry cough, sputum culture showed growth on charcoal yeast Extract Medium, theorganism is______________?
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A. Burkholderia cepacia

B. Legionella

C. Moraxella catarrhalis

D. H. influenza

2138. The function of IgD is______________?
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A. Localization protection in external secretion

B. Antigen recognition by B cells

C. Compliment activation

D. Reagin activity

2139. All are true about legionella pneumophilia except______________?
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A. It can replicate in amoeba

B. Aquatic bodies are main habitat

C. Urine test is a reliable method

D. Person to person transmission

2140. A type of immediately occuring reaction in which antigens combine with antibodies already attached to the surface of mast cells and basophils is called_____________?
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A. Type III hypersensitivity

B. Type II hypersensitivity

C. Type IV hypersensitivity

D. Type I hypersensitivity

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