Gram -ve bacteria stain during gram staining____________?

Related Mcqs:

1. Which of the following organisms does NOT react with gram’s stain ?

   A. Actinomyces israelii
   B. Candida albicans
   C. Mycobacterium tuberculosis
   D. Streptococcus mutan

2. The difference between gram positive and negative bacteria lies in their_______________?

   A. cell wall
   B. cell membrane
   C. Nuclear material
   D. Mesosomes

3. Stain used to make the wetted area of filter paper strip more visible is_____________?

   A. Eosin stain
   B. Haemotoxin stain
   C. Ninhydrin stain
   D. Blue stain

4. Specific stain for fat cells is___________?

   A. Eosin & haematoxylin
   B. Carbol fuschin
   C. Sudan III
   D. Cresyl violet

5. Stain used for demonstration of amyloid is______________?

   A. Congo Red
   B. Masson’s toichrome
   C. Vonkosa
   D. Reticulin

6. Following is used to stain fungi______________?

   A. PAS
   B. Fontania stain
   C. Ferrous trichrome
   D. Pearls prussian blue

7. Port wine stain in characteristic feature of __________________?

   A. Peutz Jegers Syndrome
   B. Sturge Weber Syndrome
   C. Albright’s Syndrome
   D. Lymphangioma

8. 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 ?

   A. Escherichia coli
   B. Klebsiella pnemoniae
   C. Proteus miribilis
   D. Pseudomonas aeruginosa

9. A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?

   A. Pasturella spp
   B. Francisella spp
   C. Bartonella spp
   D. Brucella spp

10. 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 ?

    A. Bile solubility
    B. Optochin sensitivity
    C. Bacitracin sensitivity
    D. Cataslase positive