Microbiology Fall Semester Review

If you Gram-stained the bacteria that live in the human intestine, you would expect to find mostly

• gram-positive cocci.

• gram-negative rods.

• gram-positive, endospore-forming rods.

• gram-negative, nitrogen-fixing bacteria

• all of the above

Which of the following does not belong with the others?

• Enterobacteriales

• Lactobacillales

• Legionellales

• Pasteurellales

• Vibrionales

Pathogenic bacteria can be

• cocci.

• motile.

• rods.

• anaerobic.

• all of the above.

Which of the following is an intracellular parasite?

• Rickettsia

• Mycobacterium

• Bacillus

• Staphylococcus

• Streptococcus

Which of the following terms is the most specific?

• bacillus

• gram-positive

• Endospore-forming rods and cocci

• anaerobic

Which of the following does not belong?

• Enterococcus

• Lactobaccillus

• Staphylococcus

• Streptococcus

Which of the following pairs is mismatched?

• anaerobic endospore-forming gram-positive rods - Clostridium

• facultatively anaerobic gram-negative rods - Escherichia

• facultatively anaerobic gram-negative rods - Shigella

• pleomorphic gram-positive rods - Corynebacterium

Spirillum is not classified as a spirochete because spirochetes

• do not cause disease.

• possess axial filaments.

• possess flagella.

• are prokaryotes.

• none of the above.

When Legionella was newly discovered, why was it classified with the pseudomonads?

• It is a pathogen.

• It is an aerobic gram-negative rod.

• It is difficult to culture.

• It is found in water.

• None of the above.

Unlike purple and green phototrophic bacteria, cyanobacteria

• Produce oxygen during photosynthesis

• do not require light.

• have a membrane-enclosed nucleus

• all of the above