Facultative, intracellular parasitic bacteria are those that are able to:
a. be cultured with or without oxygen but in cell cultures only.
b. exist in both intracellular and extracellular environments.
c. be cultured only with oxygen and in cell cultures.
d. be cultured only inside living organisms such as mice.
B
Brucella spp. are facultative, intracellular parasites that are able to exist in both intracellular and extracellular environments.
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Indicate whether the statement is true or false.
Antimicrobials that inhibit DNA and RNA synthesis are toxic to those taking them, so liver functions should be monitored on a regular basis for the time during which the patient is taking the drug.
a. true b. false
Listeria monocytogenes is a human pathogen, growing readily in the human body. It poses a problem in food storage because of its ability to grow in refrigerated foods, such as unpasteurized milk or deli meats. An organism that prefers moderate temperatures, such as 25 - 40C but is capable of growth at refrigerator temperatures is known as a:
mesophile psychrophile psychrotropha thermophile mesotroph
The hereditary material present in all cells is
A) protein. B) RNA. C) R-strain. D) DNA. E) S-strain.