Question 1

The CD4 molecule is

Accepted Answer

A)  a cell- surface protein receptor for HIV. 
B)  found only on T- helper cells. 
C)  an HIV surface glycoprotein. 
D)  all of the above. 
A)  a cell- surface protein receptor for HIV. 
B)  found only on T- helper cells. 
C)  an HIV surface glycoprotein. 
D)  all of the above.

Question 2

The availability of rapid antigen detection (RAD) systems for pathogenic streptococci has eliminated the need to culture Streptococcus pyogenes.

Accepted Answer

A) True 
 B)False

Question 3

Explain the relationship between chickenpox and shingles, how each is contracted, and how each can be prevented.

Accepted Answer

Both chickenpox and shingles are caused

Question 4

More than one type of influenza virus can infect a given cell at a given time.

Accepted Answer

A) True 
 B)False

Question 5

Explain the pathology, diagnosis, and treatment of gastric ulcers caused by Helicobacter pylori.

Accepted Answer

H. pylori can be spread either by person

Question 6

Tuberculoid Hansen's disease is caused by the pathogen

Accepted Answer

A)  Mycobacterium tuberculosis. 
B)  Listeria monocytogenes. 
C)  Mycobacterium leprae. 
D)  all of the above. 
A)  Mycobacterium tuberculosis. 
B)  Listeria monocytogenes. 
C)  Mycobacterium leprae. 
D)  all of the above.

Question 7

Which of the following is associated with the influenza virus?

Accepted Answer

A)  Antigenic shift is the term applied to a major change in a protein coat antigen. 
B)  Antigenic drift is the term applied to minor antigenic changes due to genetic variations such as point mutations. 
C)  Most infected individuals develop protective immunity to the infecting virus. 
D)  All of the above are associated with influenza virus. 
A)  Antigenic shift is the term applied to a major change in a protein coat antigen. 
B)  Antigenic drift is the term applied to minor antigenic changes due to genetic variations such as point mutations. 
C)  Most infected individuals develop protective immunity to the infecting virus. 
D)  All of the above are associated with influenza virus.

Question 8

In the context of the influenza virus, describe the mechanistic difference between an antigenic drift and an antigenic shift. Also indicate the result of each.

Accepted Answer

Antigenic drift is a change in the influ

Question 9

Which of the following is TRUE about whooping cough?

Accepted Answer

A)  The etiological agent will grow on blood- glycerol- potato extract agar. 
B)  A simple latex bead agglutination test is available for positive identification. 
C)  The exotoxin, which induces the synthesis of cAMP, is at least partially responsible for the events that lead to host tissue damage. 
D)  All of the above are true of whooping cough. 
A)  The etiological agent will grow on blood- glycerol- potato extract agar. 
B)  A simple latex bead agglutination test is available for positive identification. 
C)  The exotoxin, which induces the synthesis of cAMP, is at least partially responsible for the events that lead to host tissue damage. 
D)  All of the above are true of whooping cough.

Question 10

Which of the following toxins or extracellular enzymes is produced by Staphylococcus epidermidis?

Accepted Answer

A)  coagulase 
B)  hemolysins 
C)  enterotoxin 
D)  none of the above 
A)  coagulase 
B)  hemolysins 
C)  enterotoxin 
D)  none of the above

Question 11

Serious acute cases of diphtheria are treated with antibiotics and

Accepted Answer

A)  diphtheria toxoid. 
B)  diphtheria antitoxin. 
C)  diphtheria toxin. 
D)  all of the above. 
A)  diphtheria toxoid. 
B)  diphtheria antitoxin. 
C)  diphtheria toxin. 
D)  all of the above.

Question 12

Which of the following does NOT apply to bacterial pathogens affecting the respiratory tract?

Accepted Answer

A)  Most are normally transmitted person to person. 
B)  Humans are the only reservoir for most bacterial respiratory pathogens. 
C)  Most respiratory bacterial pathogens do not respond to antibiotic therapy. 
D)  Some often initiate secondary infections that can be life threatening. 
A)  Most are normally transmitted person to person. 
B)  Humans are the only reservoir for most bacterial respiratory pathogens. 
C)  Most respiratory bacterial pathogens do not respond to antibiotic therapy. 
D)  Some often initiate secondary infections that can be life threatening.

Question 13

Transmission of Mycobacterium leprae involves both________ and ________routes.

Accepted Answer

direct con

Question 14

Which of the following diseases is streptococcal in origin?

Accepted Answer

A)  rheumatic fever 
B)  scarlet fever 
C)  impetigo 
D)  all of the above 
A)  rheumatic fever 
B)  scarlet fever 
C)  impetigo 
D)  all of the above

Question 15

In 1882, the causative agent of tuberculosis was identified by________ as________.

Accepted Answer

Robert Koc

Question 16

Explain the stages of syphilis. What are the characteristics of and treatments required at each stage?

Accepted Answer

The first stage of syphilis, called prim

Question 17

Which of the following are group A Streptococcus (GAS)?

Accepted Answer

A)  Streptococcus pneumonia 
B)  Streptococcus pyogenes 
C)  Streptococcus viridans 
D)  Streptococcus aureus 
A)  Streptococcus pneumonia 
B)  Streptococcus pyogenes 
C)  Streptococcus viridans 
D)  Streptococcus aureus

Question 18

Another name for pertussis is________ , and it is caused by the bacterium _________.

Accepted Answer

whooping c

Question 19

Which of the following statements is TRUE about HIV infections?

Accepted Answer

A)  The cDNA can integrate into the host chromosome. 
B)  The viral nucleocapsid of the virus enters the host cell when the viral and host membranes fuse. 
C)  T- helper cells are greatly reduced in number. 
D)  All of the above are true of HIV infections. 
A)  The cDNA can integrate into the host chromosome. 
B)  The viral nucleocapsid of the virus enters the host cell when the viral and host membranes fuse. 
C)  T- helper cells are greatly reduced in number. 
D)  All of the above are true of HIV infections.

Question 20

Encapsulated strains of Streptococcus pneumoniae are particularly pathogenic, because they

Accepted Answer

A)  produce exotoxin A. 
B)  produce M protein surface antigens. 
C)  are potentially very invasive. 
D)  produce exotoxin B. 
A)  produce exotoxin A. 
B)  produce M protein surface antigens. 
C)  are potentially very invasive. 
D)  produce exotoxin B.

Exam 33: Person-To-Person Microbial Diseases

The CD4 molecule is

The availability of rapid antigen detection (RAD) systems for pathogenic streptococci has eliminated the need to culture Streptococcus pyogenes.

Explain the relationship between chickenpox and shingles, how each is contracted, and how each can be prevented.

More than one type of influenza virus can infect a given cell at a given time.

Explain the pathology, diagnosis, and treatment of gastric ulcers caused by Helicobacter pylori.

Tuberculoid Hansen's disease is caused by the pathogen

Which of the following is associated with the influenza virus?

In the context of the influenza virus, describe the mechanistic difference between an antigenic drift and an antigenic shift. Also indicate the result of each.

Which of the following is TRUE about whooping cough?

Which of the following toxins or extracellular enzymes is produced by Staphylococcus epidermidis?

Serious acute cases of diphtheria are treated with antibiotics and

Which of the following does NOT apply to bacterial pathogens affecting the respiratory tract?

Transmission of Mycobacterium leprae involves both________ and ________routes.

Which of the following diseases is streptococcal in origin?

In 1882, the causative agent of tuberculosis was identified by________ as________.

Explain the stages of syphilis. What are the characteristics of and treatments required at each stage?

Which of the following are group A Streptococcus (GAS)?

Another name for pertussis is________ , and it is caused by the bacterium _________.

Which of the following statements is TRUE about HIV infections?

Encapsulated strains of Streptococcus pneumoniae are particularly pathogenic, because they

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Nutrition, Culture, and Metabolism of Microorganisms

Microbial Growth

Molecular Biology of Bacteria

Archael and Eukaryotic Molecular Biology

Regulation of Gene Expression

Viruses and Virology

Genetics of Bacteria and Arachaea

Genetic Engineering

Microbial Genomics

Phototrophy, Chemolithotrophy, and Major Biosyntheses

Catabolism of Organic Compounds

Commercial Products and Biotechnology

Microbial Evolution and Systematics

Bacteria: the Proteobacteria

Other Bacteria

Archaea

Eukaryotic Cell Biology and Eukaryotic Microorganisms

Viral Diversity

Methods in Microbial Ecology

Major Microbial Habitats and Diversity

Nutrient Cycles, Biodegradation, and Bioremediation

Microbial Symbioses

Microbial Growth Control

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology and Immunology

Epidemiology

Vectorborne and Soilborne Microbial Pathogens

Wastewater Treatment, Water Purification, and Waterborne Microbial Diseases

Food Preservation and Foodborne Microbial Diseases

Filters

Transmission of Mycobacterium leprae involves both and routes.

In 1882, the causative agent of tuberculosis was identified by as.

Another name for pertussis is , and it is caused by the bacterium _.