Exam 11: The Prokaryotes: Domains Bacteria and Archaea

You have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen. The nitrate is reduced to nitrogen gas. You can be sure that this bacterium is

The majority of bacterial species on Earth have not been successfully cultivated.

The crab industry needs female crabs for growing more crabs. What bacterium might be used to ensure development of female crabs and shrimp?

Which of the following lacks a cell wall?

Which of the following are found primarily in the intestines of humans?

Mycoplasmas differ from other bacteria in that they

All of the following bacteria are motile. Which does NOT have flagella?

The deinococci can be categorized as extremophiles.

Which of the following bacteria is gram-positive?

The nonsulfur photosynthetic bacteria use organic compounds as

Staphylococcus and Streptococcus can be easily differentiated in a laboratory by which one of the following?

Which of the following is NOT a characteristic of spirochetes?

You have isolated a bacterium that grows in a medium containing only inorganic nutrients. Ammonia is oxidized to a nitrate ion. This bacterium is

Which of the following pairs is NOT correctly matched?

Both Beggiatoa and the purple sulfur bacteria use H₂S. These bacteria differ in that Beggiatoa

Which one of the following bacteria does NOT belong with the others?

Which of the following is NOT a characteristic of Neisseria?

You have isolated a gram-positive rod. What should you do next?

Streptomyces differs from Actinomyces because Streptomyces

Escherichia coli belongs to the