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MICROBIOLOGY-PATHOLOGY

QUESTIONS

Q1.  What are the “sulfur granules” found in actinomycotic lesions?

1. Uric acid crystals
2. Coagulated pus cells
3. Calcified necrotic tissue
4. Colonies of the infecting organism
5. Agglutinated platelets and lymphocytes

 

Q2.  What organ is the most susceptible to infarction due to systemic arterial thromboembolism?

1. Brain
2. Heart
3. Liver
4. Colon
5. Lung

 

Q3.  The aerosol produced during operative dental procedures is likely to contain a predominance of which of the following?

1. Yeasts and spirochetes
2. Spirochetes and rod forms
3. Spirochetes and rickettsiae
4. Gram-positive rods and cocci
5. Gram-negative rod forms and spirochetes

 

Q4.  Ten days after being hospitalized for a large, incapacitating myocardial infarct, a 50 y.o. man suddenly develops a paralysis of the right side of his body.  Which of the following BEST explains the brain damage?

1. Rupture of a congenital aneurysm of the Circle of Willis
2. Brain abscess from necrosis of myocardium
3. Formation of a bacterial embolus from the pulmonic valve
4. Embolization of a mural Thrombus from the right ventricle
5. Detachment of a mural thrombus from the left ventricle

 

Q5.  Which of the following conditions represents an intoxication rather than an infection?

1. Anthrax
2. Botulism
3. Chancroid
4. Bacteroidosis
5. Salmonellosis septicemia

 

Q6.  Which of the following organs possesses the greatest capacity for regeneration?

1. Lung
2. Liver
3. Heart
4. Brain
5. Kidney

 

Q7.  In contrast to an exudate, a transudate has a

1. cloudy appearance
2. higher specific gravity
3. lower protein concentration
4. larger number of erythrocytes
5. Characteristic cellular component

 

Q8.  Fluoride effects the metabolism of oral bacteria by inhibiting an enzyme in which of the following pathways?

1. Glycolytic
2. Folic acid
3. Citric acid
4. Aspartate biosynthetic
5. Extracellular polysaccharide

 

Q9.  Which component of the HIV virus is inhibited by AZT treatment?

1. gP120
2. ss RNA genome
3. ds DNA genome
4. Viral receptor
5. Reverse transcriptase

 

Q10.  Which of the following represents the virus MOST likely to pass the placenta and produce congenital in the fetus?

1. Mumps
2. Rubella
3. Rubeola
4. Variola
5. Varicella

 

ANSWERS

A1.  What are the “sulfur granules” found in actinomycotic lesions?

1. Uric acid crystals
2. Coagulated pus cells
3. Calcified necrotic tissue
4. Colonies of the infecting organism
5. Agglutinated platelets and lymphocytes

 

A2.  What organ is the most susceptible to infarction due to systemic arterial thromboembolism?

1. Brain
2. Heart
3. Liver
4. Colon
5. Lung

 

A3.  The aerosol produced during operative dental procedures is likely to contain a predominance of which of the following?

1. Yeasts and spirochetes
2. Spirochetes and rod forms
3. Spirochetes and rickettsiae
4. Gram-positive rods and cocci
5. Gram-negative rod forms and spirochetes

 

A4.  Ten days after being hospitalized for a large, incapacitating myocardial infarct, a 50 y.o. man suddenly develops a paralysis of the right side of his body.  Which of the following BEST explains the brain damage?

1. Rupture of a congenital aneurysm of the Circle of Willis
2. Brain abscess from necrosis of myocardium
3. Formation of a bacterial embolus from the pulmonic valve
4. Embolization of a mural Thrombus from the right ventricle
5. Detachment of a mural thrombus from the left ventricle

 

A5.  Which of the following conditions represents an intoxication rather than an infection?

1. Anthrax
2. Botulism
3. Chancroid
4. Bacteroidosis
5. Salmonellosis septicemia

 

A6.  Which of the following organs possesses the greatest capacity for regeneration?

1. Lung
2. Liver
3. Heart
4. Brain
5. Kidney

 

A7.  In contrast to an exudate, a transudate has a

1. cloudy appearance
2. higher specific gravity
3. lower protein concentration
4. larger number of erythrocytes
5. Characteristic cellular component

 

A8.  Fluoride effects the metabolism of oral bacteria by inhibiting an enzyme in which of the following pathways?

1. Glycolytic
2. Folic acid
3. Citric acid
4. Aspartate biosynthetic
5. Extracellular polysaccharide

 

A9.  Which component of the HIV virus is inhibited by AZT treatment?

1. gP120
2. ss RNA genome
3. ds DNA genome
4. Viral receptor
5. Reverse transcriptase

 

A10.  Which of the following represents the virus MOST likely to pass the placenta and produce congenital in the fetus?

1. Mumps
2. Rubella
3. Rubeola
4. Variola
5. Varicella