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Gram-Positive Cocci Quiz

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Questions and Answers

Which phyla do the genera Staphylococcus and Micrococcus belong to?

Firmicutes and Bacteroidetes

Proteobacteria and Firmicutes

Firmicutes and Actinobacteria (correct)

Actinobacteria and Proteobacteria

How many recognized species, including subspecies, are there in the genus Staphylococcus?

49 (correct)

Which families have the Staphylococcus spp. been combined with into the order Bacillales?

Bacillaceae, Planococcaceae, and Listeriaceae (correct)

Planococcaceae, Listeriaceae, and Dermacoccaceae

Micrococcaceae, Listeriaceae, and Dermacoccaceae

Enterobacteriaceae, Bacillaceae, and Planococcaceae

Which genera have some of the Micrococcus species been reclassified into?

Kocuria, Nesterenkonia, Kytococcus, and Dermacoccus (A) Signup and view all the answers

Which family does the organism Alloiococcus otitidis belong to based on its biochemical reactions?

Carnob (C) Signup and view all the answers

What is the average size of bacteria measured in μm?

0.4-2 μm (C) Signup and view all the answers

Which genus is known as the smallest living organism?

Mycoplasma (A) Signup and view all the answers

Which type of organisms release exotoxins except for Listeria?

Major gram positive organisms (C) Signup and view all the answers

Which type of toxins are usually produced by gram negative organisms?

Endotoxins (B) Signup and view all the answers

Which type of toxin has a stability to heating described as stable?

Endotoxins (A) Signup and view all the answers