Dentosphere : World of Dentistry

The correct answers are highlighted in green. # Detoxification of drugs is controlled by: a) Cytochrome b) Cytochrome P450 c) Cytochrome C d) Cytochrome A # In cytochrome P450, P stands for: a) Structural proteins b) Substrate protein c) Pigment d) Polymer # Detoxification or protective synthesis occurs by: a) Oxidation b) Reduction c) Conjugation d) Any of the above # The major driving force for formation of membrane lipid bilayer is: a) Hydrogen bonding b) Hydrophobic interactions c) Vander waal forces d) Not known

The correct answers are highlighted in green. # The maxillary teeth which have single antagonist are: (MAN-94, 95) a) Lateral incisors b) Permanent canines c) Permanent central incisors d) Third molars # In occlusion, the teeth have: (MAN-94, AIIMS-93) a) Cusp-to-cusp contact b) Edge-to-edge contact c) Marginal contact d) Surface-to-surface contact # In normal occlusion, with which groove / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude: a) Distobuccal groove b) Mesial Surface c) Mesiobuccal surface d) Transverse groove

The correct answers are highlighted in green. # Malignant pustule is referred to: (KAR-2003, AIIMS-2K) a) Facio-cervical actinomycosis b) Cutaneous anthrax c) Infected squamous cell carcinoma d) None of the above # One of the following is a zoonotic disease: (KAR-2001) a) Anthrax b) Typhoid c) Bacillary dysentery d) Cholera # Causative agents of "Vincent's angina": (KAR-98, 2001) a) Borrelia vincenti and Fusobacterium fusiformis b) Borrelia recurrents and Bacteroides c) Borrelia burgoloferi and Lactobacillus d) Leptospira and Treponema pallidum

The correct answers are highlighted in green. Feel free to share with your friends, colleagues, and students.  # The causative organism of syphilis is: (AIPG -94) a) Borrelia burgolorferi b) Chalamydia trachomatis c) Leptospira interrogans d) Treponema pallidum # On a stained slide, Clostridium tetani has the appearance of a: (MAN-95) a) Bunch of grapes b) Chain of beads c) Drum stick d) Safety pin # An oxidase-positive, gram-negative rod which produces a bluish-green pigment has been grown in culture from a swab obtained from an infected burn wound. This organism is susceptible to gentamicin, ticarcillin and tobramicin, but resistant to all the other antibiotics. Which of the following organisms is it likely to be? (MAN-95) a) Escherichia coli b) Klebsiella pnemoniae c) Proteus mirabilis d) Pseudomonas aeruginosa

The correct answers are highlighted in green. # The most common side effect of the oral administration of ampicillin is: (MAN-94, AIIMS-93) a) Anaphylactic shock b) Diarrhoea c) Oral candidiasis d) Renal failure # Which of the following drugs is likely to damage the eighth cranial nerve when administered for a long period of time? (MAN-94) a) Ethambutol b) Isoniazid c) Rifampicin d) Streptomycin  

The correct answers are highlighted in green. # The mechanism by which most fungi cause disease is: (APPSC-99) a) exotoxin production b) lecithinase production c) hypersensitivity d) coagulase production # Germ tubes are formed mainly by: (TNPSC-99) a) Candida albicans b) Candida stellatoidea c) Candida tropicalis d) Candida pseudotropicalis # Fungal infection of human beings is called as: (KAR-2000) a) Mucorsis b) Mycosis c) Fungosis d) Micromia # Fungus capable of forming fungal ball is: (TNPSC-99) a) Penicillium b) Aspergillus c) Mucor d) Rhizopus # Aflatoxins are produced by: (KAR-03) a) Aspergillus niger b) Aspergillus fumigatus c) Aspergillus flavus d) All of the above # The culture media for fungus is - a) Tellurite medium b) NNN medium c) Chocolate agar medium d) Sabourauds medium # A sporangium contains: a)Spherules b)Sporangiospores c)Chlamydospores d)Oidia # The medium of c...

# Gutta Percha can effectively be sterilized by? (AIIMS-07) a) Dry heat b) Autoclaving c) Hot salt sterilizer d) Chemical solutions Answer: D. Chemical Solutions Gutta-percha cones may be kept sterile in screw-capped vials containing alcohol. A Gutta percha cone freshly removed from the manufacturer’s box should be immersed in 5.2% sodium hypochlorite for 1 minute, then rinse the cone with hydrogen peroxide and dry it between 2 layers of sterile gauze.