7. Prokaryotic Cell Structures & Functions

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

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

These aerobic, gram-negative bacteria produce tracheal cytotoxin that kills ciliated cells of the trachea.

Intracellular reticulate bodies of this gram-negative bacterium convert to elementary bodies that can infect a new host cell.

The cell wall of Gram-negative organisms: