GENERAL MICROBIOLOGY ( BIOL 3210 ) FINAL PRACTICE EXAM
QUESTIONS
1. Scalded-skin syndrome is caused by which organism : toxin pair?
Answer:
Please use proper nomenclature system of organism. 0.5 pt deduction for not following
nomenclature rules for each organism name.
**I suggest doing this for every toxin mediated disease we have studied
2. The M protein of Streptococcus pyogenes is significant for all of the following
reasons EXCEPT:
A. Interferes with phagocytosis
B. Antibodies to M protein may cause rheumatic fever
C. There are different antigenic types of M protein
D. Binds Fc portion of antibody
Answer:
**Know proteins in Staph and Strep that bind Fc portion of antibodies and help prevent
opsonization.
3. Use the following to answer questions – (answers can be used more than once)
A. Staphylococcus aureus
B. Staphylococcus epidermidis
C. Streptococcus pyogenes
D. Streptococcus pneumoniae
. Some strains produce a heat stable enterotoxin.
. Coagulase negative opportunistic skin pathogen.
. Protein F is a critical virulence factor.
. capsule is crucial virulence factor to prevent phagocytosis.
1
, 4. The sudden, violent, uncontrollable cough of pertussis is described as
A. productive.
B. contagious.
C. infective.
D. paroxysmal.
Answer:
5. Pertussis toxin-
A. uses part B to attach to receptors on the host cell.
B. uses part A to inactivate a regulatory G protein.
C. affects the level of cAMP in a cell.
D. affects the level of mucus secretion.
E. All of the choices are correct.
Answer:
6. People who have LTBI (latent tuberculosis infection) are treated because otherwise
they might…..
A. pass their LTBI on to others via horizontal transmission.
B. pass their LTBI on to their offspring via vertical transmission.
C. be too tired to be productive.
D. develop ATBD (active tuberculosis disease) later in life
Answer:
2
QUESTIONS
1. Scalded-skin syndrome is caused by which organism : toxin pair?
Answer:
Please use proper nomenclature system of organism. 0.5 pt deduction for not following
nomenclature rules for each organism name.
**I suggest doing this for every toxin mediated disease we have studied
2. The M protein of Streptococcus pyogenes is significant for all of the following
reasons EXCEPT:
A. Interferes with phagocytosis
B. Antibodies to M protein may cause rheumatic fever
C. There are different antigenic types of M protein
D. Binds Fc portion of antibody
Answer:
**Know proteins in Staph and Strep that bind Fc portion of antibodies and help prevent
opsonization.
3. Use the following to answer questions – (answers can be used more than once)
A. Staphylococcus aureus
B. Staphylococcus epidermidis
C. Streptococcus pyogenes
D. Streptococcus pneumoniae
. Some strains produce a heat stable enterotoxin.
. Coagulase negative opportunistic skin pathogen.
. Protein F is a critical virulence factor.
. capsule is crucial virulence factor to prevent phagocytosis.
1
, 4. The sudden, violent, uncontrollable cough of pertussis is described as
A. productive.
B. contagious.
C. infective.
D. paroxysmal.
Answer:
5. Pertussis toxin-
A. uses part B to attach to receptors on the host cell.
B. uses part A to inactivate a regulatory G protein.
C. affects the level of cAMP in a cell.
D. affects the level of mucus secretion.
E. All of the choices are correct.
Answer:
6. People who have LTBI (latent tuberculosis infection) are treated because otherwise
they might…..
A. pass their LTBI on to others via horizontal transmission.
B. pass their LTBI on to their offspring via vertical transmission.
C. be too tired to be productive.
D. develop ATBD (active tuberculosis disease) later in life
Answer:
2
