Microbiology Flashcards

Microbiology Flashcards Front: What is the shape and Gram status of Escherichia coli? Back: Rod-shaped and Gram-negative (-).

Front: Which microorganisms are catalase-positive? Back: Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Proteus vulgaris, Pseudomonas aeruginosa, and Neisseria subflava.

Front: Which microorganisms are Gram-positive cocci? Back: Staphylococcus aureus and Staphylococcus epidermidis.

Front: What does “AG” mean in the glucose fermentation column? Back: Acid and gas production during glucose fermentation.

Front: Which microorganism produces an alkaline (K) reaction in the TSIA test? Back: Pseudomonas aeruginosa.

Front: Which microorganism is oxidase-positive? Back: Neisseria subflava.

Front: Which microorganism does not ferment lactose? Back: Proteus vulgaris and Pseudomonas aeruginosa.

Front: What type of reaction does Staphylococcus aureus show in the MSA test? Back: Positive reaction.

Front: Which microorganisms are urease-negative? Back: Escherichia coli and Pseudomonas aeruginosa.

Front:** What shape and Gram status are Neisseria subflava? Back: Coccus-shaped and Gram-negative (-).

Front: What does “K/A/G” in the TSIA test mean? Back: Alkaline slant, acid butt, and gas production.

Front: Which microorganism ferments both glucose and lactose? Back: Escherichia coli and Enterobacter aerogenes.

Front: Which microorganism is a Gram-negative rod and does not produce gas in glucose fermentation? Back: Pseudomonas aeruginosa.

Front: Which microorganism shows “NC” (no change) for lactose fermentation? Back: Proteus vulgaris and Pseudomonas aeruginosa.