BIOL 221 Exam 4 MCQs Practice Questions and Answers
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Course
BIOL
Institution
BIOL
BIOL 221 Exam 4 MCQs Practice
Questions and Answers
In an experiment, test subjects are given a diet without sucrose, while control subjects are given a diet
with sucrose. Which of the following results would NOT be expected? - ANSWER-test subjects would
have a more acidic oral pH
Which of the...
This dangerous chronic infection is transmitted mainly by contaminated needles among drug users. It
causes cirrhosis after many years. There is no vaccine. It is... - ANSWER✔✔-hepatitis C
The organism shown below were isolated from frothy, foul smelling diarrhea from a hiker on the
Appalachian Trail, who was successfully treated with metronidazole. They are... - ANSWER✔✔-giardia
trophozoites
All of the following are virulence factors of Helicobacter pylori EXCEPT... - ANSWER✔✔-survival in
phagocytes
This week there was a multi-state recall of sushi from yellow fin tuna that is contaminated with
Salmonella. You didn't hear about that? You like sushi? Damn! What symptoms can you expect to
experience if you got infected? - ANSWER✔✔-intestinal cramps and diarrhea with some blood in the
stool
Jordyn is into the party scene at her college. She drinks a lot, occasionally injects drugs at parties and has
sex with three boyfriends (Jordyn's situation is not all that uncommon, by the way). She is putting herself
at increased risk for all of the following EXCEPT... - ANSWER✔✔-mumps
Infection with which of the following is more common in the US than in developing countries? -
ANSWER✔✔-streptococcus mutans
Helicobacter pylori has all off the following virulence factors EXCEPT... - ANSWER✔✔-a secretion of an A-
B toxin that increases cAMP production
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