MICROBIOLOGY & PUBLIC HEALTH
(GREEN PACOP eli) 300
QUESTIONS AND CORRECT
ANSWERS 2025 EXAM || A GRADE
The sudden unexpected occurrence of a disease in a given population:
A) Outbreak
B) Zoonotic
C) Endemic
D) Sporadic - ANSWER- A) Outbreak
A causative agent of peptic ulcer:
,A) Escherichia coli
B) Bordetella pertussi
C) Shigella dysenteriae
D) Helicobacter pylori - ANSWER- D) Helicobacter pylori
The "four o'clock habit" promoted by the Department of Health is
designed to prevent the spread of:
A) Dengue fever
B) Tuberculosis
C) Malnutrition
D) Malaria - ANSWER- A) Dengue fever
The first drug available for HIV:
A) ZDU
B) RMP
C) TMP
D) CMC - ANSWER- A) ZDU
An immediate hypersensitivity reaction following exposure of a
sensitized individual to the appropriate antigen:
A) Hay fever
B) Anaphylaxis
C) Asthma
D) Desensitization - ANSWER- B) Anaphylaxis
,A thin proteinaceous appendage necessary for bacterial conjugation: A)
Cilium
B) Trichome
C) Flagellum
D) Pilus - ANSWER- D) Pilus
The use of nitrite as preservative for food is discouraged because:
A) It can discolor the meat
B) It can react with amines to form carcinogenic nitrosamines
C) It decomposed to nitric acid which can react with heme pigments D)
It is not readily available - ANSWER- B) It can react with amines to
form carcinogenic nitrosamines
The disinfectant of choice for municipal water supplies:
A) Lysol
B) Chlorine
C) Ozone
D) Reverse osmosis - ANSWER- B) Chlorine
An object that is able to harbor and transmit microorganisms: A) Mite
B) Fomite
C) Arthropod
D) Vector - ANSWER- B) Fomite
, Administration of a toxoid confers:
A) Naturally acquired active immunity
B) Naturally acquired passive immunity
C) Artificially acquired active immunity
D) Artificially acquired passive immunity - ANSWER- C) Artificially
acquired active immunity
An index that measures the number of individuals who have become ill
because of a specific disease within a susceptible population during a
specific period:
A) Morbidity rate
B) Prevalence rate
C) Mortality rate
D) All of the above - ANSWER- A) Morbidity rate
The effectiveness of a disinfectant is influenced by:
A) Population size C) Concentration of the disinfectant
B) Duration of exposure D) All of the above - ANSWER- D) All of the
above
Lesions in the oral cavity caused by measles virus are known as: A)
Koplik spot
B) Peyer's pathches
C) Rose spots
(GREEN PACOP eli) 300
QUESTIONS AND CORRECT
ANSWERS 2025 EXAM || A GRADE
The sudden unexpected occurrence of a disease in a given population:
A) Outbreak
B) Zoonotic
C) Endemic
D) Sporadic - ANSWER- A) Outbreak
A causative agent of peptic ulcer:
,A) Escherichia coli
B) Bordetella pertussi
C) Shigella dysenteriae
D) Helicobacter pylori - ANSWER- D) Helicobacter pylori
The "four o'clock habit" promoted by the Department of Health is
designed to prevent the spread of:
A) Dengue fever
B) Tuberculosis
C) Malnutrition
D) Malaria - ANSWER- A) Dengue fever
The first drug available for HIV:
A) ZDU
B) RMP
C) TMP
D) CMC - ANSWER- A) ZDU
An immediate hypersensitivity reaction following exposure of a
sensitized individual to the appropriate antigen:
A) Hay fever
B) Anaphylaxis
C) Asthma
D) Desensitization - ANSWER- B) Anaphylaxis
,A thin proteinaceous appendage necessary for bacterial conjugation: A)
Cilium
B) Trichome
C) Flagellum
D) Pilus - ANSWER- D) Pilus
The use of nitrite as preservative for food is discouraged because:
A) It can discolor the meat
B) It can react with amines to form carcinogenic nitrosamines
C) It decomposed to nitric acid which can react with heme pigments D)
It is not readily available - ANSWER- B) It can react with amines to
form carcinogenic nitrosamines
The disinfectant of choice for municipal water supplies:
A) Lysol
B) Chlorine
C) Ozone
D) Reverse osmosis - ANSWER- B) Chlorine
An object that is able to harbor and transmit microorganisms: A) Mite
B) Fomite
C) Arthropod
D) Vector - ANSWER- B) Fomite
, Administration of a toxoid confers:
A) Naturally acquired active immunity
B) Naturally acquired passive immunity
C) Artificially acquired active immunity
D) Artificially acquired passive immunity - ANSWER- C) Artificially
acquired active immunity
An index that measures the number of individuals who have become ill
because of a specific disease within a susceptible population during a
specific period:
A) Morbidity rate
B) Prevalence rate
C) Mortality rate
D) All of the above - ANSWER- A) Morbidity rate
The effectiveness of a disinfectant is influenced by:
A) Population size C) Concentration of the disinfectant
B) Duration of exposure D) All of the above - ANSWER- D) All of the
above
Lesions in the oral cavity caused by measles virus are known as: A)
Koplik spot
B) Peyer's pathches
C) Rose spots
