Question 1

All of the following pertain to Enterococcus faecalis, except

Accepted Answer

A) normal flora of the human large intestine. 
B) increasingly resistant to many antimicrobics. 
C) cause nosocomial wound infections, urinary tract infections, and septicemias. 
D) can cause endocarditis. 
E) belong to Lancefield Group B streptococci. 
A) normal flora of the human large intestine. 
B) increasingly resistant to many antimicrobics. 
C) cause nosocomial wound infections, urinary tract infections, and septicemias. 
D) can cause endocarditis. 
E) belong to Lancefield Group B streptococci.

Question 2

Scarlet fever is caused by strains of

Accepted Answer

A) Staphylococcus aureus. 
B) Staphylococcus epidermidis. 
C) Staphylococcus saprophyticus. 
D) Streptococcus pyogenes. 
E) Streptococcus agalactiae. 
A) Staphylococcus aureus. 
B) Staphylococcus epidermidis. 
C) Staphylococcus saprophyticus. 
D) Streptococcus pyogenes. 
E) Streptococcus agalactiae.

Question 3

People at greatest risk for pneumococcal infections include all the following, except

Accepted Answer

A) elderly. 
B) those with underlying lung disease and viral infections. 
C) patients without a spleen. 
D) adolescents and young adults. 
E) young infants. 
A) elderly. 
B) those with underlying lung disease and viral infections. 
C) patients without a spleen. 
D) adolescents and young adults. 
E) young infants.

Question 4

Impetigo involves itching papules that break and form a very contagious yellow crust.

Accepted Answer

A) True 
 B)False

Question 5

Neisseria gonorrhoeae is

Accepted Answer

A) the cause of ophthalmia neonatorum. 
B) the cause of gonorrhea. 
C) called the gonococcus. 
D) virulent due to fimbriae and a protease that inactivates IgA. 
E) All of these choices are correct. 
A) the cause of ophthalmia neonatorum. 
B) the cause of gonorrhea. 
C) called the gonococcus. 
D) virulent due to fimbriae and a protease that inactivates IgA. 
E) All of these choices are correct.

Question 6

The most common site where carriers of Staphylococcus aureus carry this pathogen is

Accepted Answer

A) all over the skin. 
B) under the fingernails. 
C) anterior nares (nostrils). 
D) mouth. 
E) intestines. 
A) all over the skin. 
B) under the fingernails. 
C) anterior nares (nostrils). 
D) mouth. 
E) intestines.

Question 7

Most cases of otitis media in children are due to infection with

Accepted Answer

A) Streptococcus pneumoniae. 
B) Streptococcus pyogenes. 
C) Branhamella (Moraxella) catarrhalis. 
D) Streptococcus agalactiae. 
E) Staphylococcus saprophyticus. 
A) Streptococcus pneumoniae. 
B) Streptococcus pyogenes. 
C) Branhamella (Moraxella) catarrhalis. 
D) Streptococcus agalactiae. 
E) Staphylococcus saprophyticus.

Question 8

The viridans group of streptococci and the pneumococcus produce _____ hemolysis on blood agar.

Accepted Answer

The answer of The viridans group of streptococci and the...

Question 9

Which of the following antibiotics specifically disrupt protein synthesis of streptococci?

Accepted Answer

A) β-lactams 
B) macrolides 
C) cephalosporins 
D) ansamycin plural 
E) aminoglycosides 
A) β-lactams 
B) macrolides 
C) cephalosporins 
D) ansamycin plural 
E) aminoglycosides

Question 10

Staphylococci can be differentiated from streptococci by the

Accepted Answer

A) Gram stain. 
B) coagulase test. 
C) catalase test. 
D) fermentation of mannitol. 
A) Gram stain. 
B) coagulase test. 
C) catalase test. 
D) fermentation of mannitol.

Question 11

A patient has a suspicious skin infection and a culture is taken.Which media would be appropriate to select for staphylococci?

Accepted Answer

A) Nutrient agar 
B) Blood agar 
C) Chocolate agar 
D) macConkey agar 
E) Mannitol salt agar 
A) Nutrient agar 
B) Blood agar 
C) Chocolate agar 
D) macConkey agar 
E) Mannitol salt agar

Question 12

Describe the transmission of the meningococcus, and discuss the pathogenesis of meningococcal disease in the body including associated signs and symptoms.

Accepted Answer

The transmission of the meningococcus ba

Question 13

Symptoms of Toxic Shock Syndrome include all the following, except

Accepted Answer

A) fever and muscle pain. 
B) appearance of flesh being "eaten" down to the muscle. 
C) nausea, vomiting and diarrhea. 
D) sunburn-like rash. 
E) kidney and liver failure. 
A) fever and muscle pain. 
B) appearance of flesh being "eaten" down to the muscle. 
C) nausea, vomiting and diarrhea. 
D) sunburn-like rash. 
E) kidney and liver failure.

Question 14

It is theorized that rheumatic fever and acute glomerulonephritis could be the result of antibodies to Group A streptococci that cross-react with patient tissues.

Accepted Answer

A) True 
 B)False

Question 15

Explain what is meant by MRSA, why it is a particular concern to hospitals, and what action hospitals are taking to prevent MRSA spread.

Accepted Answer

MRSA stands for Methicillin-resistant St

Question 16

The enzyme that coagulates plasma is

Accepted Answer

A) catalase. 
B) coagulase. 
C) hyaluronidase. 
D) staphylokinase. 
E) Dnase. 
A) catalase. 
B) coagulase. 
C) hyaluronidase. 
D) staphylokinase. 
E) Dnase.

Question 17

Which of the following organisms would look most similar to Neisseria meningitidis on a Gram stained smear?

Accepted Answer

A) Staphylococcus aureus 
B) Branhamella catarrhalis 
C) Streptococcus agalactiae 
D) Streptococcus pneumoniae 
A) Staphylococcus aureus 
B) Branhamella catarrhalis 
C) Streptococcus agalactiae 
D) Streptococcus pneumoniae

Question 18

Streptococcus agalactiae is known as Group _____ streptococci.

Accepted Answer

The answer of Streptococcus agalactiae is known as Group _____...

Question 19

All of the following are associated with subacute endocarditis, except

Accepted Answer

A) it occurs in patients that have prior heart damage. 
B) it is caused by immune system autoantibodies that attack heart and valve tissue. 
C) oral bacteria get introduced by dental procedures to the blood. 
D) bacteria colonize previously damaged heart tissue resulting in vegetation. 
E) signs and symptoms include fever, heart murmur, and possible emboli. 
A) it occurs in patients that have prior heart damage. 
B) it is caused by immune system autoantibodies that attack heart and valve tissue. 
C) oral bacteria get introduced by dental procedures to the blood. 
D) bacteria colonize previously damaged heart tissue resulting in vegetation. 
E) signs and symptoms include fever, heart murmur, and possible emboli.

Question 20

The Group A streptococcal infection that has symptoms of fever, edema of skin near portal of entry, and an elevated red, hot vesicular lesion is

Accepted Answer

A) erysipelas. 
B) impetigo. 
C) necrotizing fasciitis. 
D) scarlet fever. 
A) erysipelas. 
B) impetigo. 
C) necrotizing fasciitis. 
D) scarlet fever.

Exam 18: The Gram-Positive and Gram-Negative Cocci of Medical Importance

All of the following pertain to Enterococcus faecalis, except

Scarlet fever is caused by strains of

People at greatest risk for pneumococcal infections include all the following, except

Impetigo involves itching papules that break and form a very contagious yellow crust.

Neisseria gonorrhoeae is

The most common site where carriers of Staphylococcus aureus carry this pathogen is

Most cases of otitis media in children are due to infection with

The viridans group of streptococci and the pneumococcus produce _____ hemolysis on blood agar.

Which of the following antibiotics specifically disrupt protein synthesis of streptococci?

Staphylococci can be differentiated from streptococci by the

A patient has a suspicious skin infection and a culture is taken.Which media would be appropriate to select for staphylococci?

Describe the transmission of the meningococcus, and discuss the pathogenesis of meningococcal disease in the body including associated signs and symptoms.

Symptoms of Toxic Shock Syndrome include all the following, except

It is theorized that rheumatic fever and acute glomerulonephritis could be the result of antibodies to Group A streptococci that cross-react with patient tissues.

Explain what is meant by MRSA, why it is a particular concern to hospitals, and what action hospitals are taking to prevent MRSA spread.

The enzyme that coagulates plasma is

Which of the following organisms would look most similar to Neisseria meningitidis on a Gram stained smear?

Streptococcus agalactiae is known as Group _____ streptococci.

All of the following are associated with subacute endocarditis, except

The Group A streptococcal infection that has symptoms of fever, edema of skin near portal of entry, and an elevated red, hot vesicular lesion is

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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