HSS 1100 MIDTERM 2 EXAM
QUESTIONS WITH CORRECT
ANSWERS
What are 2 types of toxins produced by Clostridium difficile and what are their effects on
the infected host? - Answer-Toxin A: causes diarrhea
Toxin B: cytotoxic to colonic cells
List the 4 levels of fungal infections. Starting with the least serious to the most serious
symptoms - Answer-1. Superficial fungal infection
2. Cutaneous fungal infection
3. Subcutaneous fungal infection
4. Systemic fungal infection
List the FOUR stages of syphilis infection - Answer-1. Primary Syphilis
2. Secondary Syphilis
3. Latent Syphilis
4. Late Syphilis
Chlamydia exists as 2 distinct forms during its life cycle. Name these 2 forms and list
their roles in their life cycle - Answer-1. Elementary body: no growth or replication
2. Replication body: replication and growth
To be considered positive, a tuberculin test must show, after 48 hours, an induration:
a. Less than 5 mm in diameter
b. Larger than the redness (erythema)
c. 10 mm or more in diameter
d. with some local hemorrhage
e. with scab formation - Answer-c. 10 mm or more in diameter
Malaria is caused by which of the following organisms?
a. Toxoplasma
b. Trypanosome
c. Trichomonas
d. Giardia
e. Plasmodium - Answer-e. Plasmodium
, Where is Bacilius anthracis commonly found?
a. In rice
b. In fish exclusively
c. In animal hides (fur)
d. In human only
e. In certain species of birds - Answer-c. In animal hides (fur)
Which of the following are NOT traits of mycobacterium
i. -acid-Fast Bacterium
ii. -can grow rapidly on artificial media
iii. -are Gram-positive cocci
a. i only
b. ii only
c. iii only
d. i and ii only
e. ii and iii only - Answer-e. ii and iii only
Which of the following statements about syphilis is false?
a. Syphilis is caused by a spirochete bacterium
b. A positive VDRL test is much better confirmed by specific treponemal antibody tests
c. A non-specific test involves cardiolipin as an antigen
d. It can be transmitted to the fetus
e. It can be seen microscopically using a acid fast stain - Answer-e. It can be seen
microscopically using an acid fast stain
Which of the following is not a parasitic disease?
a. Amoebiasis
b. Trichomoniasis
c. Giardiasis
d. Toxoplasmosis
e. Histoplasmosis - Answer-e. Histoplasmosis
Which of the following diseases is NOT caused by bacterial Exotoxin?
a. Botulism
b. Enteric fever
c. Anthrax
d. Tetanus
e. Diphtheroa - Answer-b. Enteric fever
Which of the following is NOT a part of the metazoa family?
a. Enterobius Vermicularis
b. Trichinella Spiralis
c. Anisakis Simples
d. Schistosoma spp.
e. Giardia Lamblia - Answer-e. Giardia Lamblia
QUESTIONS WITH CORRECT
ANSWERS
What are 2 types of toxins produced by Clostridium difficile and what are their effects on
the infected host? - Answer-Toxin A: causes diarrhea
Toxin B: cytotoxic to colonic cells
List the 4 levels of fungal infections. Starting with the least serious to the most serious
symptoms - Answer-1. Superficial fungal infection
2. Cutaneous fungal infection
3. Subcutaneous fungal infection
4. Systemic fungal infection
List the FOUR stages of syphilis infection - Answer-1. Primary Syphilis
2. Secondary Syphilis
3. Latent Syphilis
4. Late Syphilis
Chlamydia exists as 2 distinct forms during its life cycle. Name these 2 forms and list
their roles in their life cycle - Answer-1. Elementary body: no growth or replication
2. Replication body: replication and growth
To be considered positive, a tuberculin test must show, after 48 hours, an induration:
a. Less than 5 mm in diameter
b. Larger than the redness (erythema)
c. 10 mm or more in diameter
d. with some local hemorrhage
e. with scab formation - Answer-c. 10 mm or more in diameter
Malaria is caused by which of the following organisms?
a. Toxoplasma
b. Trypanosome
c. Trichomonas
d. Giardia
e. Plasmodium - Answer-e. Plasmodium
, Where is Bacilius anthracis commonly found?
a. In rice
b. In fish exclusively
c. In animal hides (fur)
d. In human only
e. In certain species of birds - Answer-c. In animal hides (fur)
Which of the following are NOT traits of mycobacterium
i. -acid-Fast Bacterium
ii. -can grow rapidly on artificial media
iii. -are Gram-positive cocci
a. i only
b. ii only
c. iii only
d. i and ii only
e. ii and iii only - Answer-e. ii and iii only
Which of the following statements about syphilis is false?
a. Syphilis is caused by a spirochete bacterium
b. A positive VDRL test is much better confirmed by specific treponemal antibody tests
c. A non-specific test involves cardiolipin as an antigen
d. It can be transmitted to the fetus
e. It can be seen microscopically using a acid fast stain - Answer-e. It can be seen
microscopically using an acid fast stain
Which of the following is not a parasitic disease?
a. Amoebiasis
b. Trichomoniasis
c. Giardiasis
d. Toxoplasmosis
e. Histoplasmosis - Answer-e. Histoplasmosis
Which of the following diseases is NOT caused by bacterial Exotoxin?
a. Botulism
b. Enteric fever
c. Anthrax
d. Tetanus
e. Diphtheroa - Answer-b. Enteric fever
Which of the following is NOT a part of the metazoa family?
a. Enterobius Vermicularis
b. Trichinella Spiralis
c. Anisakis Simples
d. Schistosoma spp.
e. Giardia Lamblia - Answer-e. Giardia Lamblia
