Microbiology Module 6 Questions and
with Answers|New Edition Graded
A|New Upload
_____________________________________________________________________________________
Match the following diseases with their respective symptoms:
1. folliculitis
2. scalded-skin syndrome
3. impetigo
4. conjunctivitis
5. ophthalmia neonatorum
A. Childhood skin disease near mouth/nose
B. Infection of thin, transparent scleral tissue
C. Infection occurs at time of birth
D. Pus-filled lesions on skin or hair
E. Ruptured pustules; treated with penicillin
D
2. E
3. A
4. B
5. C
True or False. The causative agent of conjunctivitis can be either bacterial or viral.
True
True or False. Tuberculosis is best identified by a Gram stain.
False
True or False. Although TB must be inhaled and reside in the lung in order to cause infection, TB can
also spread to the brain, spine, and kidneys.
True
Identify the disease based on the following (select all that apply):
It is a small, acid-fast rod usually remaining asymptomatic for up to 20 years. It affects the skin,
nerves, upper respiratory tract, and eyes of infected individuals.
Leprosy and Hansen's disease
True or False. Only directly ingesting the pre-formed clostridium toxin (neither the bacteria nor its
spores) will cause disease in adults.
, True
While visiting his grandparents, a 10-year-old child has green beans for dinner that were harvested
from his grandparents' garden and canned the previous year. Severe illness sets in and the child is
taken to the hospital. Botulism is suspected, but what form - foodborne, infant, or wound
botulism?Explain why it would NOT be classified as the other two options.
The suspected form of Botulism would be foodborne. It would not be infant because the child is
too old to be effected and it would not be wound because the disease was ingested.
True or False. Although there is no cure for tetanus, it can be prevented through vaccination.
True
Describe the symptoms and treatment regimen for someone infected with Clostridium perfringens.
The sumptoms of Gas Gangrene are swelling of the infected areas, fever, and gas production.
Treatment includes amputation of the area and heavy antibiotic treatment.
Why does the alpha toxin (perfringolysin) produced during an infection of gas gangrene cause cell
death?
This happens because of the lack of oxygen in present in the cell onces the toxin finds its host.
You develop a fever, chills, and pneumonia after recently returning from a getaway weekend where
you sat in a hot tub. What bacterial disease would a doctor suspect is causing your symptoms? Would
the doctor suspect you contracted it from another person?
A doctor would suspect Legionnaires' disease contracted from the hot tub.
True or False. Bubonic plague is often characterized by painfully swollen lymph nodes.
True
Which form of the plague is the most rare? What does it target?
The rarest form of the plague is septicemic. This variation of the plague target the blood system.
Identify the following disease:
Anthrax
Syphilis is caused by:
gram negative spirochete
True or False. Chlyamida is an obligate parasite and as such can be grown on agar plates alone.
False
Match the following diseases with their respective symptoms if left untreated:
1.Gonorrhea
2. Syphilis
, 3. Chlamydia
A. Paralysis, blindness and dementia
B. Painfully swollen lymph nodes
C. Cardiac and neurological complications
D. Respiratory failure associated with lock-jaw
E. Infertility and pelvic inflammatory disease.
F. Sore throat, ocular discharge and fever
C
2. A
3. E
True or False. Because the genome is contained within an enclosed space (much like the nucleus of a
cell), viruses are classified as eukaryotic.
False
Describe the two basic components of a virus.
The two basic components of a virus are the DNA or RNA components, and the capsid.
The ________ surrounds the capsid of some viruses.
envelope
True or False. You would expect to see a viral envelope on a virus infecting a bacterial cell.
False
Rank the following viruses based on their size from largest to smallest:
Orthomyxovirus
Poliovirus
Variolavirus
Variolavirus
Orthomyxovirus
Poliovirus
True or False: Highly infectious viruses undergo genome replication prior to viral attachment and
entry.
False
Place the following viral life cycle steps in order beginning with viral attachment and provide a
description of each step.
Uncoating:
Release:
Replication:
Attachment:
Entry:
New infection:
with Answers|New Edition Graded
A|New Upload
_____________________________________________________________________________________
Match the following diseases with their respective symptoms:
1. folliculitis
2. scalded-skin syndrome
3. impetigo
4. conjunctivitis
5. ophthalmia neonatorum
A. Childhood skin disease near mouth/nose
B. Infection of thin, transparent scleral tissue
C. Infection occurs at time of birth
D. Pus-filled lesions on skin or hair
E. Ruptured pustules; treated with penicillin
D
2. E
3. A
4. B
5. C
True or False. The causative agent of conjunctivitis can be either bacterial or viral.
True
True or False. Tuberculosis is best identified by a Gram stain.
False
True or False. Although TB must be inhaled and reside in the lung in order to cause infection, TB can
also spread to the brain, spine, and kidneys.
True
Identify the disease based on the following (select all that apply):
It is a small, acid-fast rod usually remaining asymptomatic for up to 20 years. It affects the skin,
nerves, upper respiratory tract, and eyes of infected individuals.
Leprosy and Hansen's disease
True or False. Only directly ingesting the pre-formed clostridium toxin (neither the bacteria nor its
spores) will cause disease in adults.
, True
While visiting his grandparents, a 10-year-old child has green beans for dinner that were harvested
from his grandparents' garden and canned the previous year. Severe illness sets in and the child is
taken to the hospital. Botulism is suspected, but what form - foodborne, infant, or wound
botulism?Explain why it would NOT be classified as the other two options.
The suspected form of Botulism would be foodborne. It would not be infant because the child is
too old to be effected and it would not be wound because the disease was ingested.
True or False. Although there is no cure for tetanus, it can be prevented through vaccination.
True
Describe the symptoms and treatment regimen for someone infected with Clostridium perfringens.
The sumptoms of Gas Gangrene are swelling of the infected areas, fever, and gas production.
Treatment includes amputation of the area and heavy antibiotic treatment.
Why does the alpha toxin (perfringolysin) produced during an infection of gas gangrene cause cell
death?
This happens because of the lack of oxygen in present in the cell onces the toxin finds its host.
You develop a fever, chills, and pneumonia after recently returning from a getaway weekend where
you sat in a hot tub. What bacterial disease would a doctor suspect is causing your symptoms? Would
the doctor suspect you contracted it from another person?
A doctor would suspect Legionnaires' disease contracted from the hot tub.
True or False. Bubonic plague is often characterized by painfully swollen lymph nodes.
True
Which form of the plague is the most rare? What does it target?
The rarest form of the plague is septicemic. This variation of the plague target the blood system.
Identify the following disease:
Anthrax
Syphilis is caused by:
gram negative spirochete
True or False. Chlyamida is an obligate parasite and as such can be grown on agar plates alone.
False
Match the following diseases with their respective symptoms if left untreated:
1.Gonorrhea
2. Syphilis
, 3. Chlamydia
A. Paralysis, blindness and dementia
B. Painfully swollen lymph nodes
C. Cardiac and neurological complications
D. Respiratory failure associated with lock-jaw
E. Infertility and pelvic inflammatory disease.
F. Sore throat, ocular discharge and fever
C
2. A
3. E
True or False. Because the genome is contained within an enclosed space (much like the nucleus of a
cell), viruses are classified as eukaryotic.
False
Describe the two basic components of a virus.
The two basic components of a virus are the DNA or RNA components, and the capsid.
The ________ surrounds the capsid of some viruses.
envelope
True or False. You would expect to see a viral envelope on a virus infecting a bacterial cell.
False
Rank the following viruses based on their size from largest to smallest:
Orthomyxovirus
Poliovirus
Variolavirus
Variolavirus
Orthomyxovirus
Poliovirus
True or False: Highly infectious viruses undergo genome replication prior to viral attachment and
entry.
False
Place the following viral life cycle steps in order beginning with viral attachment and provide a
description of each step.
Uncoating:
Release:
Replication:
Attachment:
Entry:
New infection:
