MCB 100 UIUC Exam 2 Questions And Answers With
Complete Solutions
_____________ are the environmental reservoir for infection
with Cryptococcus neoformans.
Mice
Cats
Birds
Deer
Fleas Correct Answers Birds
A 20-year-old male reports to his physician that he has
experienced painful urination, as if he were urinating molten
solder. He has also noticed a pus-like discharge from his penis.
A stained smear of the discharge is shown in the photo.
The patient reports having been sexually active with two or three
women in the previous six months. Because his partners
reported being "absolutely sure" that they wouldn't get pregnant
and carried no sexually transmitted diseases, the patient had not
used a condom.
How was this disease transmitted?
-This is most commonly transmitted by unprotected sex.
-This disease is spread by aerosol transmission on a windy day.
-This disease is spread through contaminated swimming pool
water.
,-This is a disease transmitted by eating contaminated
hamburger. Correct Answers This is most commonly
transmitted by unprotected sex.
A 20-year-old male reports to his physician that he has
experienced painful urination, as if he were urinating molten
solder. He has also noticed a pus-like discharge from his penis.
A stained smear of the discharge is shown in the photo.
The patient reports having been sexually active with two or three
women in the previous six months. Because his partners
reported being "absolutely sure" that they wouldn't get pregnant
and carried no sexually transmitted diseases, the patient had not
used a condom.
What disease does this patient have? What is the common name
for this disease?
genital herpes; "crabs"
gonorrhea; " the clap"
chlamydia; "red eye"
syphilis; "tabes" Correct Answers gonorrhea; " the clap"
A 20-year-old male reports to his physician that he has
experienced painful urination, as if he were urinating molten
solder. He has also noticed a pus-like discharge from his penis.
A stained smear of the discharge is shown in the photo.
The patient reports having been sexually active with two or three
women in the previous six months. Because his partners
reported being "absolutely sure" that they wouldn't get pregnant
,and carried no sexually transmitted diseases, the patient had not
used a condom.
Why did his sexual partners believe they were not infected with
a STD?
-Females develop signs of blindness and cataracts.
-His partners had been drinking beer and felt they were
invincible, but not very coherent.
-The female partners were on birth control pills and thought they
were protected against STDs.
-Clinical signs/symptoms in females are often not detectable,
especially early in the infection. Correct Answers Clinical
signs/symptoms in females are often not detectable, especially
early in the infection.
A bacterial species with spherical cells that have random planes
of cell division will form which of the following arrangements?
Correct Answers Staphylococci
A dikaryon differs from a diploid cell in that the dikaryon
_____.
-has two separate nuclei
-only has chromosomes from the + mating type
-is haploid
-has one nucleus with two sets of chromosomes Correct
Answers has two separate nuclei
A major difference between the lytic and lysogenic cycles of
phage replication is that during the lysogenic phase _____.
, -attachment of the phage involves a random collision
-the host DNA is degraded
-the bacterial cell is broken open, destroying the cell
-the phage genome inserts itself into the host genome Correct
Answers the phage genome inserts itself into the host genome
A male patient comes into the clinic complaining of painful
urination and a purulent discharge. A sample of the discharge is
taken to the lab and after Gram-staining pink spheres in pairs are
observed. Which of the following organisms is most likely
causing the infection?
Escherichia coli
Streptococcus pneumoniae
Neisseria gonorrhoeae
Bacillus anthracis Correct Answers Neisseria gonorrhoeae
A microbiologist is making agar plates in which to grow
bacteria. She can get the agar from:
brown algae.
green algae.
fungi.
red algae. Correct Answers red algae.
A mushroom is an example of _____, which is the reproductive
organ of a mold.
a mycelium
a hypha
Complete Solutions
_____________ are the environmental reservoir for infection
with Cryptococcus neoformans.
Mice
Cats
Birds
Deer
Fleas Correct Answers Birds
A 20-year-old male reports to his physician that he has
experienced painful urination, as if he were urinating molten
solder. He has also noticed a pus-like discharge from his penis.
A stained smear of the discharge is shown in the photo.
The patient reports having been sexually active with two or three
women in the previous six months. Because his partners
reported being "absolutely sure" that they wouldn't get pregnant
and carried no sexually transmitted diseases, the patient had not
used a condom.
How was this disease transmitted?
-This is most commonly transmitted by unprotected sex.
-This disease is spread by aerosol transmission on a windy day.
-This disease is spread through contaminated swimming pool
water.
,-This is a disease transmitted by eating contaminated
hamburger. Correct Answers This is most commonly
transmitted by unprotected sex.
A 20-year-old male reports to his physician that he has
experienced painful urination, as if he were urinating molten
solder. He has also noticed a pus-like discharge from his penis.
A stained smear of the discharge is shown in the photo.
The patient reports having been sexually active with two or three
women in the previous six months. Because his partners
reported being "absolutely sure" that they wouldn't get pregnant
and carried no sexually transmitted diseases, the patient had not
used a condom.
What disease does this patient have? What is the common name
for this disease?
genital herpes; "crabs"
gonorrhea; " the clap"
chlamydia; "red eye"
syphilis; "tabes" Correct Answers gonorrhea; " the clap"
A 20-year-old male reports to his physician that he has
experienced painful urination, as if he were urinating molten
solder. He has also noticed a pus-like discharge from his penis.
A stained smear of the discharge is shown in the photo.
The patient reports having been sexually active with two or three
women in the previous six months. Because his partners
reported being "absolutely sure" that they wouldn't get pregnant
,and carried no sexually transmitted diseases, the patient had not
used a condom.
Why did his sexual partners believe they were not infected with
a STD?
-Females develop signs of blindness and cataracts.
-His partners had been drinking beer and felt they were
invincible, but not very coherent.
-The female partners were on birth control pills and thought they
were protected against STDs.
-Clinical signs/symptoms in females are often not detectable,
especially early in the infection. Correct Answers Clinical
signs/symptoms in females are often not detectable, especially
early in the infection.
A bacterial species with spherical cells that have random planes
of cell division will form which of the following arrangements?
Correct Answers Staphylococci
A dikaryon differs from a diploid cell in that the dikaryon
_____.
-has two separate nuclei
-only has chromosomes from the + mating type
-is haploid
-has one nucleus with two sets of chromosomes Correct
Answers has two separate nuclei
A major difference between the lytic and lysogenic cycles of
phage replication is that during the lysogenic phase _____.
, -attachment of the phage involves a random collision
-the host DNA is degraded
-the bacterial cell is broken open, destroying the cell
-the phage genome inserts itself into the host genome Correct
Answers the phage genome inserts itself into the host genome
A male patient comes into the clinic complaining of painful
urination and a purulent discharge. A sample of the discharge is
taken to the lab and after Gram-staining pink spheres in pairs are
observed. Which of the following organisms is most likely
causing the infection?
Escherichia coli
Streptococcus pneumoniae
Neisseria gonorrhoeae
Bacillus anthracis Correct Answers Neisseria gonorrhoeae
A microbiologist is making agar plates in which to grow
bacteria. She can get the agar from:
brown algae.
green algae.
fungi.
red algae. Correct Answers red algae.
A mushroom is an example of _____, which is the reproductive
organ of a mold.
a mycelium
a hypha
