Intro to Microbiology Chapter 11

Which of the following terms is the most specific? A) Bacillus B) anaerobic C) gram-positive D) bacillus E) endospore-forming rods & cocci

Bacillus

If you Gram-stained the bacteria that live in the human intestine, you would expect to find mostly A) gram-positive cocci. B) gram-negative rods. C) gram-positive, endospore-forming rods. D) gram-negative, nitrogen-fixing bacteria. E) all of the above

gram-negative rods

Spirillum is not classified as a spirochete because spirochetes A) possess flagella B) do not cause disease C) are prokaryotes D) possess axial filaments E) none of the above

possess axial filaments

12) Cyanobacteria differ from purple and green phototrophic bacteria because cyanobacteria A) produce oxygen during photosynthesis. B) do not require light. C) use H2S as an electron donor. D) have a membrane-enclosed nucleus.

produce oxygen during photosynthesis.

Which of the following pairs is mismatched? A) anaerobic endospore-forming gram-positive rods, Clostridium B) facultatively anaerobic gram-negative rods, Escherichia C) facultatively anaerobic gram-negative rods, Shigella D) pleomorphic gram-positive rods, Corynebacterium E) spirochete, Helicobacter

spirochete, Helicobacter

Which of the following does not belong with the others? A) Enterobacteriales B) Lactobacillales C) Legionellales D) Pasteurellales E) Vibrionales

Lactobacillales

Which of the following is an intracellular parasite? A) Mycobacterium B) Bacillus C) Rickettsia D) Streptococcus E) Staphylococcus

Rickettsia

Which one of the following does not belong with the others? A) Enterococcus B) Lactobacillus C) Streptococcus D) Staphylococcus E) all are grouped together

Staphylococcus

Pathogenic bacteria can be A) motile B) rods C) cocci D) anaerobic E) all of the above

all of the above

When Legionella was newly discovered, it was classified with the pseudomonads because A) it is a pathogen. B) it is an aerobic gram-negative rod. C) it is difficult to culture. D) it is found in water. E) none of the above

it is an aerobic gram-negative rod.