Form A Exam 3 Fall 2012
1. Which form of the exam do you have?
2. A friend of yours, Garrett, complains that it burns when he urinates. You know that he met a
new girl, Jaclyn, a while ago. Their relationship has become close and they have become
sexually involved with one another. You suggest that he may have chlamydia. He insists that this
is not possible because he has not had sex with anyone except Jaclyn and that they have always
been completely honest with each other. She would have told him if she had chlamydia. You
then correctly explain to him that:
A. although chlamydia may be sexually transmitted, it is usually obtained by non-sexual
B. women with chlamydia usually have no symptoms, so Jaclyn may not have known she
C. he should be treated immediately because, if untreated, chlamydia is usually fatal
D. it doesn't matter how he got the disease, because there is no treatment and he'll now
have it for life
3. Things don't work out for Jaclyn and Garrett. Several years later, Jaclyn marries another friend
of yours, George. Although they would like to have children, they are unable to conceive a child
after two years of trying. You recall your earlier suspicion that Jaclyn may have had chlamydia.
You correctly mention to the frustrated couple that chlamydial infections may cause infertility
A. the remaining organisms attack and kill sperm cells
B. bacteria causing the infection often attack and kill the potential egg cells in the
C. the high fever during the illness damages the potential egg cells
D. in its final stages chlamydia attacks the nervous system and may disrupt hormone
E. they may cause scar tissue to form in the oviducts
4. Choose the
statement about plasmids.
A. Plasmids are necessary for the survival of bacteria.
B. Plasmids can carry many genes for antibiotic resistance (to different antibiotics).
C. Plasmids can be copied and transferred to other bacteria.
D. Plasmids can be transferred to different kinds (species) of bacteria.
5. All of the following are correct statements EXCEPT:
A. A reason that a properly used condom may not prevent the spread of an STD is that
the infected site may not be covered by the condom.
B. A reason that a properly used condom may not prevent the spread of an STD is that
disease organisms can sometimes pass through the latex
C. A diaphragm offers a woman some protection against getting an STD from an infected
male, but it offers little protection for the male if the woman is infected.
D. A woman who is using the birth control pill as a means of contraception has an
increased risk of developing certain STDs.
(Solution) (7 points) Score 1.
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