Mesophilic organisms are those that grow best at temperature of______________?

Related Mcqs:

1. The genetic ability of a bacterium to grow in the presence of several antibiotics is passed in vivo from one bacterium to another by_____________?

   A. Conjugation
   B. Rarefaction
   C. Transduction
   D. Transformation

2. Reduction in the fusion temperature of dental gold casting alloys is caused by presence of______________?

   A. Platinum
   B. Copper
   C. Silver
   D. Gold

3. All are not true for cultivation of anaerobic organisms except_______________?

   A. Incubator
   B. anaerobic jar
   C. Refrigerator
   D. Centrifuge

4. Which of the following organisms are arranged in cubical packets of eight cocci________________?

   A. Staphylococcus
   B. Micrococcus
   C. Sarcina
   D. Aerococcus

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

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

6. Antibiotic sensitivity and resistance of micro organisms is determined by________________?

   A. Direct microscopy
   B. Culture
   C. ELISA
   D. DNA probe

7. 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

8. The most common site where organisms are present in a typhoid carrier is______________?

   A. Spleen
   B. Gall Bladder
   C. Liver
   D. Salivary gland

9. Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?

   A. Cocci
   B. Spirochetes
   C. Bacteriophages
   D. Filamentous rods

10. Which one of the following enteric organisms is anaerogenic and non motile ?

    A. Shigella sonnei
    B. Salmonella typhi
    C. Proteus mirabilis
    D. Klebsiella pneumonia