Which type of bacteria can grow in the presence or absence of oxygen?
a. obligate aerobes
b. obligate anaerobes
c. facultative anaerobes
d. obligate aerobes and obligate anaerobes
e. obligate anaerobes and facultative anaerobes
ANSWER: c
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A disease that is present in unusually high numbers throughout the world is called a(n)
A) endemic. B) epidemic. C) sporadic. D) pandemic.
A person is infected with HIV. The individual is treated with several drugs, including azidothymidine (AZT). Which of the following is the most immediate effect of this drug?
A. It allows reverse transcriptase to proofread, and this will allow successful treatment with a vaccine. B. It does not allow the virus to make a DNA copy of its genome. C. It does not allow the viral genome to become integrated into the host genome. D. It inhibits formation of the capsid. E. It inhibits budding, as it is the reverse of the process by which HIV enters a cell.
What form of energy is stored within the molecules of ATP?
a. kinetic b. heat c. potential d. nuclear e. light
Symptoms of Toxic Shock Syndrome include all the following, except:
A. fever and muscle pain. B. appearance of flesh being "eaten" down to the muscle. C. nausea, vomiting, diarrhea. D. sunburn-like rash. E. kidney and liver failure.