18 Questions
What is the Gram stain result for Aeromonas?
Gram-negative
Which bacterial strain produces smooth, convex, translucent colonies?
C. fetus subsp. fetus
What is the definitive identification test for Campylobacter jejuni?
Positive hippurate hydrolysis test
Which bacterial strain demonstrates 'darting' motility?
Campylobacter
What is the culture medium used for definitive identification of H. pylori?
Christensen’s urea medium at 37°C
Which indirect test can be used to detect the presence of H. pylori?
Urea Breath Test
Which characteristic is unique to Pseudomonas stutzeri for differentiating it from other Pseudomonas species?
Wrinkled, leathery, adherent colonies
What characteristic is common to Pseudomonas mendocina and Pseudomonas pseudoalcaligenes/alciligenes?
Positive for oxidase and ADH
What is a distinguishing feature of Pseudomonas mendocina compared to other Pseudomonas species?
Production of pyoverdine
What property can be used to differentiate Pseudomonas pseudoalcaligenes from other Pseudomonas species?
Weak ferment fructose
Which feature is indicative of Pseudomonas mosellii among the given options?
Optimal growth at 30°C
What characteristic of Pseudomonas nonfluorescent group helps in distinguishing it from other Pseudomonas species?
Light-yellow or brown pigment
What causes urethritis?
Neisseria gonorrhoeae, Chlamydia trachomatis, or Ureaplasma urealyticum
What is the microscopic morphology associated with gonococcal urethritis?
Gram-negative intracellular diplococci
What is the recommended culture medium for identifying Neisseria gonorrhoeae?
Chocolate Agar Plate
Which biochemical test is used for definitive identification of Neisseria gonorrhoeae?
Oxidase Test
What color change indicates a positive result in the oxidase test for Neisseria gonorrhoeae?
Purple within 10 seconds
Which of the following is NOT a recommended specimen for direct microscopic examination?
Pharyngeal swab
Test your knowledge on identifying bacteria based on colony morphology characteristics such as color, shape, and texture. Questions cover different types of colonies produced by bacteria like runny, spreading, and pigmented colonies.
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