Which of the following is NOT a trait of rickettsias?
A) They have not been cultivated in the absence of host cells.
B) They are obligate intracellular parasites.
C) They lack cell walls.
D) Both the host and parasite are required in order to be alive and metabolically active.

Question

Quizplus · Accepted Answer

Rickettsias are unique in that they do have cell walls, but these cell walls are different from those of most other bacteria. Rickettsias are small, gram-negative bacteria that are obligate intracellular parasites, meaning that they require a host cell to survive and reproduce. They have not yet been successfully cultured in the absence of host cells, which has made it difficult to study them in the laboratory. Both the host and parasite are required for rickettsias to be alive and metabolically active.

Which of the Following Is NOT a Trait of Rickettsias