Question 1

The sexually transmitted invasive form of chlamydia

Accepted Answer

A)  never infects the baby of an infected mother during birth. 
B)  is symptomatic in 85% of infected females. 
C)  is caused by the LGV strain of Chlamydia trachomatis. 
D)  is easily differentiated from gonorrhea. 
E)  does not recur because of the immune response the host produces against reinfection. 
A)  never infects the baby of an infected mother during birth. 
B)  is symptomatic in 85% of infected females. 
C)  is caused by the LGV strain of Chlamydia trachomatis. 
D)  is easily differentiated from gonorrhea. 
E)  does not recur because of the immune response the host produces against reinfection.

Question 2

The infectious form of chlamydia is the (elementary/initial/inclusion)body.

Accepted Answer

The answer of The infectious form of chlamydia is the...

Question 3

All of the rickettsias are spread by transovarian transfer.

Accepted Answer

A) True 
 B)False

Question 4

Infection with ________ produces symptoms similar to RMSF,except for the rash,making it difficult to diagnose.

Accepted Answer

A)  Anaplasma phagocytophilium 
B)  Chlamydophila psittaci 
C)  Chlamydia trachomatis 
D)  Treponema carateum 
E)  Vibrio vulnificus 
A)  Anaplasma phagocytophilium 
B)  Chlamydophila psittaci 
C)  Chlamydia trachomatis 
D)  Treponema carateum 
E)  Vibrio vulnificus

Question 5

A gastroenteritis which usually resolves in 72 hours is contracted from eating shellfish contaminated with

Accepted Answer

A)  Campylobacter jejuni. 
B)  Ehrlichia caffeensis. 
C)  Helicobacter pylori. 
D)  Vibrio cholera. 
E)  Vibrio parahaemolyticus. 
A)  Campylobacter jejuni. 
B)  Ehrlichia caffeensis. 
C)  Helicobacter pylori. 
D)  Vibrio cholera. 
E)  Vibrio parahaemolyticus.

Question 6

Rickettsiosis is caused by Rickettsia rickettsii,a pathogen that

Accepted Answer

A)  produces powerful exotoxins. 
B)  provokes a severe immune response. 
C)  interferes with the host cell's Krebs cycle. 
D)  infects the lining of blood vessels and leads to leaking of plasma into tissue. 
E)  lyses the host's cells. 
A)  produces powerful exotoxins. 
B)  provokes a severe immune response. 
C)  interferes with the host cell's Krebs cycle. 
D)  infects the lining of blood vessels and leads to leaking of plasma into tissue. 
E)  lyses the host's cells.

Question 7

The signs and symptoms of infection with Helicobacter pylori are the result of

Accepted Answer

A)  damage to the lining of blood vessels by H. pylori. 
B)  invasion by H. pylori into the mucosa of the large intestine. 
C)  invasion by H. pylori into the mucosa of the stomach. 
D)  the production of exotoxins by H. pylori in the intestines. 
E)  the production of toxins by H. pylori in contaminated food. 
A)  damage to the lining of blood vessels by H. pylori. 
B)  invasion by H. pylori into the mucosa of the large intestine. 
C)  invasion by H. pylori into the mucosa of the stomach. 
D)  the production of exotoxins by H. pylori in the intestines. 
E)  the production of toxins by H. pylori in contaminated food.

Question 8

Untreated syphilis may persist in a latent state for (months/years/decades)before manifesting as tertiary syphilis.

Accepted Answer

The answer of Untreated syphilis may persist in a latent...

Question 9

Which of the following pairs is MISMATCHED?

Accepted Answer

A)  elementary bodies; dormant infectious form 
B)  reticulate bodies; actively replicate in endosomes 
C)  elementary bodies; small cocci 
D)  reticulate bodies; dormant infectious stage 
E)  inclusion bodies; RB filled endosomes 
A)  elementary bodies; dormant infectious form 
B)  reticulate bodies; actively replicate in endosomes 
C)  elementary bodies; small cocci 
D)  reticulate bodies; dormant infectious stage 
E)  inclusion bodies; RB filled endosomes

Question 10

A young woman who was recently hiking in the mountains and discovered a tick on her torso has a fever that came on quite suddenly.She has no rash,but she develops leukopenia.Which of the following diseases is she most likely to have contracted?

Accepted Answer

A)  anaplasmosis 
B)  Lyme disease 
C)  relapsing fever 
D)  Rocky Mountain spotted fever 
E)  scrub typhus 
A)  anaplasmosis 
B)  Lyme disease 
C)  relapsing fever 
D)  Rocky Mountain spotted fever 
E)  scrub typhus

Question 11

Explain what is meant by describing chlamydias as "energy parasites."

Accepted Answer

Chlamydias do not have the capability to

Question 12

Which of the following is an intracellular parasite of humans that usually causes a mild pneumonia?

Accepted Answer

A)  Anaplasma phagocytophilium 
B)  Chlamydophila pneumoniae 
C)  Chlamydophila psittaci 
D)  Ehrlichia chaffeensis 
E)  Rickettsia typhi 
A)  Anaplasma phagocytophilium 
B)  Chlamydophila pneumoniae 
C)  Chlamydophila psittaci 
D)  Ehrlichia chaffeensis 
E)  Rickettsia typhi

Question 13

The bacterium ________ is a common cause of bacterial gastroenteritis contracted from contaminated food,especially poultry.

Accepted Answer

A)  Campylobacter jejuni 
B)  Helicobacter pylori 
C)  Vibrio cholerae 
D)  Leptospira interrogans 
E)  Vibrio parahaemolyticus 
A)  Campylobacter jejuni 
B)  Helicobacter pylori 
C)  Vibrio cholerae 
D)  Leptospira interrogans 
E)  Vibrio parahaemolyticus

Question 14

What characteristic does Vibrio share with Salmonella?

Accepted Answer

A)  Both have O polysaccharide antigens. 
B)  Both are oxidase positive. 
C)  Both have polar flagella. 
D)  Both have similar shape. 
E)  Both are spread primarily by fecal contamination. 
A)  Both have O polysaccharide antigens. 
B)  Both are oxidase positive. 
C)  Both have polar flagella. 
D)  Both have similar shape. 
E)  Both are spread primarily by fecal contamination.

Question 15

A positive urease test in cultures from gastric secretions provides preliminary identification of Helicobacter pylori.

Accepted Answer

A) True 
 B)False

Exam 21: Rickettsias, Chlamydias, Spirochetes, and Vibrios

The sexually transmitted invasive form of chlamydia

The infectious form of chlamydia is the (elementary/initial/inclusion)body.

All of the rickettsias are spread by transovarian transfer.

Infection with ________ produces symptoms similar to RMSF,except for the rash,making it difficult to diagnose.

A gastroenteritis which usually resolves in 72 hours is contracted from eating shellfish contaminated with

Rickettsiosis is caused by Rickettsia rickettsii,a pathogen that

The signs and symptoms of infection with Helicobacter pylori are the result of

Untreated syphilis may persist in a latent state for (months/years/decades)before manifesting as tertiary syphilis.

Which of the following pairs is MISMATCHED?

A young woman who was recently hiking in the mountains and discovered a tick on her torso has a fever that came on quite suddenly.She has no rash,but she develops leukopenia.Which of the following diseases is she most likely to have contracted?

Explain what is meant by describing chlamydias as "energy parasites."

Which of the following is an intracellular parasite of humans that usually causes a mild pneumonia?

The bacterium ________ is a common cause of bacterial gastroenteritis contracted from contaminated food,especially poultry.

What characteristic does Vibrio share with Salmonella?

A positive urease test in cultures from gastric secretions provides preliminary identification of Helicobacter pylori.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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