Multiple Choice
A Gram stain of a tissue sample from a patient shows Gram-negative spheres that can barely be resolved on the best light microscope. A transmission electron micrograph reveals the spheres have a double membrane but no cell wall. The intracellular parasites are likely to be a
A) Listeria.
B) Mycoplasma.
C) Coxiella.
D) Chlamydia.
E) Rickettsia.
Correct Answer:

Verified
Correct Answer:
Verified
Q29: A flexible, spiral-shaped bacterium is called a<br>A)
Q32: Mycoplasmas are pleomorphic because they<br>A) are low
Q35: Unusual cellular extensions called prosthecae are associated
Q36: Rocky Mountain spotted fever is caused by
Q37: When an endospore germinates, it gives rise
Q38: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB1519/.jpg" alt=" The arrangement shown
Q39: Phototrophic bacteria that use chlorophyll a are
Q58: Describe the similarities and differences observed among
Q68: Cocci can be spherical as well as
Q71: The infective stage of chlamydia is called