Bio 145 Quiz 10 (ch 19-21)

Question 0

Which of the following is a key diagnostic indicator of infection with mycobacterium leprae?
A. Cough and flu-like symptoms
B. a distinctive bulls-eye red rash
C. Tubercles in the lung
D. Loss of the sense of touch leading to deformity of appendages

Answer 0

D. Loss of the sense of touch leading to deformity of appendages

Question 1

This bacterium is responsible for nearly 2 million deaths annually world-wide, has a waxy lipid of mycolic acid in the cell wall, causes infections of the lungs by reproducing in macrophages, and forms a mass of cells called a tubercle that can be diagnosed with an x-ray.
A. Propionibacterium acnes
B. clostridium botulinum
C. Viridians streptococci
D. Mycobacterium tuberculosis

Answer 1

D. Mycobacterium tuberculosis

Question 2

Increased sebum secretion can fuel the overgrowth of the opportunistic pathogen \_\_\_\_\_ in its normal habitat, leading to disease.
A. Propionibacterium acnes
B. clostridium botulinum
C. Viridians streptococci
D. Mycobacterium tuberculosis

Answer 2

B. clostridium botulinum

Question 3

The pus from an abscess in a patient's jaw contains microbes that form yellowish grainy masses (sand-like "sulfur granules") and appear filamentous under the microscope. Anti fungal medication has not been effective in treating the infection. The abscess is likely the result of infection with
A. Actinomycetes
B. mycobacterium
C. Neisseria
D. Propionibacterium

Answer 3

A. Actinomycetes

Question 4

Lipid A causes which of the following symptoms?
A. Hemorrhaging
B. red rash on hands and feet
C. Fever and disseminated intravascular coagulation
D. Stops protein synthesis

Answer 4

C. Fever and disseminated intravascular coagulation

Question 5

Which of the following statements about Neisseria gonorrhoeae is FALSE?
A. It causes disease in humans only
B. infected men are often asymptomatic
C. The the gonococci stick to epithelial cells via fimbriae and capsules
D. The gonococci secrete a protease that destroys secretory IgA

Answer 5

B. infected men are often asymptomatic

Question 6

This bacterium infects young patients especially in dorma or barracks, has characteristic symptom of stiff neck and abrupt sore throat, and diagnostic Gram negative diolococcic in phagocytes in CNS fluid. 
A. Neisseria meningitis
B. proteus mirabilis
C. E. Coli
D. Shigella dysenteriae

Answer 6

A. Neisseria meningitis

Question 7

Bordetella pertussis cause disease by
A. Causing diarrhea
B. interfering with the action of the ciliates epithelial cells of the trachea
C. Invading erythrocytes and causing anemia
D. Forming a pseudomembrane that obstructs the larynx

Answer 7

B. interfering with the action of the ciliates epithelial cells of the trachea

Question 8

What symptom is characteristic of Yersinia pestis?
A. Bubo lesion
B. darkening of skin from subcutaneous hemorrhaging
C. A gumma lesion
D. Both A and B

Answer 8

D. Both A and B

Question 9

This genus of bacteria can cause disease vectored by live called trench fever or infections from cat scratch or bites called cat scratch disease
A. Neisseria
B. Bartonella
C. Legionella
D. Shigella

Answer 9

B. Bartonella

Question 10

Which of the following is the correct pairing of rickettsial pathogen and vector?
A. R prowazeki; flea
B. R typhi; tick
C. R. Rickettsia; tick
D. R rickettsia; cat

Answer 10

C. R. Rickettsia; tick

Question 11

Rickettsiosis is caused by Rickettsia rickettsii, a pathogen that
A. Produces powerful exotoxins
B. stops protein synthesis
C. Infects the lining of blood vessels and leads to leaking of plasma into tissue
D. Causes lymph node swelling called bubo

Answer 11

C. Infects the lining of blood vessels and leads to leaking of plasma into tissue