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Exam 4 Review
Terms in this set (47)
Which of the following would NOT be a likely member of the normal microbiota of the skin surface?
Members of the normal microbiota of the skin surface
Infection known as ________ frequently begins as an injury that rapidly becomes red, swollen, hot to the touch, and intensely painful.
What causes scabies?
The resistance of Pseudomonas to a wide variety of antimicrobial drugs is due, in part, to its
ability to pump drugs out of the cell.
A person is brought to the emergency room with constant high fever, extensive edema, low blood pressure, and petechiae. From which of the following may the person be suffering?
"Swimmer's itch" is an initial symptom of which of the following?
The zoonosis known as __________ is transmitted to humans by fleas.
Lipid A can cause septic shock.
Patients with occult septicemia are asymptomatic
Cycles of fever, chills, anemia and headache along with passage of dark colored urine are the symptoms of infection with
How does Borrelia burgdorferi evade the body's defenses?
It is capable of antigenic variation and has manganese-containing enzymes.
How is yellow fever virus spread?
Which of the following is part of the upper respiratory system?
Which of the following statements is TRUE concerning diphtheria?
The signs and symptoms of the disease are directly caused by a bacterial toxin.
Inflammation of the pharynx with pus-filled abscesses and swollen tonsils is known as
streptococcal pharyngitis ("strep throat").
Which of the following statements is TRUE regarding the common cold?
Cold viruses are frequently spread by contaminated fomites.
Which of the following statements is TRUE regarding tuberculosis?
It remains viable in dried aerosol droplets for up to eight months.
Bordetella pertussis causes whooping cough by
interfering with the activity of ciliated epithelial cells in the trachea.
The mycoplasmas have been successively classified as viruses, Gram-negative bacteria, and Gram-positive bacteria largely due to the lack of cell _______ in their structure.
A major change in the surface glycoproteins of influenza A, which occurs every 10 years on average, is called ______ shift.
The virulence factor of Vibrio cholera, which is primarily responsible for the signs and symptoms of cholera, is
its ability to produce a potent exotoxin.
A patient receives a long-term dose of powerful antibiotics that dramatically reduces the bacterial population in his digestive system. Which of the following effects do you think might result from the loss of so many of his resident microbes?
increased susceptibility to disease and vitamin K deficiency
All of these bacteria produce virulence factors called type III secretion systems EXCEPT __________.
Bacterial that produce virulence factors called type III secretion systems
What is a virulence factor of Staphylococcus that allows it to cause food intoxication?
Urease is an enzyme that can produce the highly alkaline compound ammonia. It is an important virulence factor of which of the following?
What is a common cause of viral gastroenteritis in babies?
How do vaginal microbiota slow/prevent reproduction of Trichomonas vaginalis?
normal microbiota ferment sugars, producing acids
Which of the following is FALSE concerning UTIs?
Are more common in men than in women.
Dysuria, or painful urination, is the most common symptom
Enteric bacteria, such as Escherichia coli, are the most common cause
The presence of flagella and fimbriae make it easier for bacteria to cause one
Which of the following is NOT true of syphilis?
Syphilis is diagnosed by observing distinct colonies growing on blood agar plates.
A rash is a typical sign of secondary _____
Some infected individuals experience only the primary stage of the disease.
The bacterium that causes it cannot survive for a long time on surfaces outside the host.
What would be the effect of a mutation that inactivates Neisseria gonorrhoeae's genes for fimbriae?
decreased ability to infect
A woman visits her gynecologist, complaining of vaginal discharge, irritation, and pain during intercourse. Upon examination, her doctor observes a yellowish-green color to the discharge and a foul-smelling odor (but not "fishy" smelling.) What disease does the woman most likely have?
caused by a protozoan
Which of the following statements is TRUE regarding genital herpes?
Acyclovir is effective in reducing the occurrence of lesions, but is not a cure.
Which of the following statements is TRUE regarding gonorrhea?
The causative agent can also infect the eyes.
A vaccine is available to prevent infection with _____
The normal microbiota of the vagina help maintain a vaginal pH of around 7.5.
Which of the following is LEAST likely to be treated with an antibiotic?
A 25-year-old man presented with fever, malaise, and a rash on his chest, arms, and feet. Which of the following causative agents is most likely to cause these symptoms?
A 25-year-old man presented with fever, malaise, and a rash on his chest, arms, and feet. Diagnosis was based on serological testing. The patient then reported that he had an ulcer on his penis two months earlier. What stage of disease is the patient in?
A 25-year-old male presented with fever, malaise, and a rash on his chest, arms, and feet. Diagnosis was based on serological testing. The patient then reported that he had an ulcer on his penis two months earlier. This disease can be treated with
Which of the following is treated with cephalosporins because the organism is resistant to penicillin and fluoroquinolones?
Recurring vesicles on the surface of human skin are symptoms of
Which one of the following statements about genital warts is FALSE?
It is always precancerous.
Genital Warts Facts
It is caused by papillomaviruses.
It can lead to cervical cancer in women.
It is transmitted by direct contact.
It is treated by removing them.
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