Microbiology Exam Questions and Answers 2022
1. Which step is not included in gram staining method?
a. Primary staining
b. Application of mordant
c. Heating with 70 degrees
d. Decolourization with ethanol or acetone
by organic solvents and take counterstain appearing red
2. Acid fast stain discovered by?
a. Christian Stain
b. Ehrlich
c. Albert
d. Nelson
3. Which type of bacteria are oval or spherical in shape?
a. Cocci
b. Bacilli
c. Spirochetes
d. Actinomycetes
4. The bacteria, they are cold loving microbes that grow within a temperature range from 0–20◦ C?
a. Psychrophiles
b. Mesophiles
c. Thermophiles
d. None of these
5. Who is known as father of Microbiology?
a. Louis Pasteur
b. Antony van Leeuwenhoek
c. Joseph Lister
d. Robert Koch
6. Who was discovered Mycobacterium leprae?
a. Robert Koch
b. Hansen
c. Neisser
d. Ogston
7.The famous scientist, Kitasato discovered which of the following bacteria?
a. Bacillus anthracis
b. Neisseria gonorrhoeae
c. Clostridium tetani
d. Yersinia Pestis
8. —– are slender, flexuous spiral forms bacteria
a. Cocci
b. Bacilli
c. Spirochetes
d. Actinomycetes
9. The bacterial cell embedded by flagella over the entire body is known as?
a. Monotrichous
b. Lophotrichous
c. Peritrichous
d. Amphitrichous
10. The following methods are examples of sterilization by dry heat, except?
a. Flaming
b. Tyndallization
c. Hot air oven
d. Incineration
11. A culture and sensitivity reports shows Amikacin is sensitive against particular organism. It means?
a. Infection treatable by the normal dosage of Amikacin
b. Infection may respond to higher dosage of Amikacin
c. Unlikely to respond to usual dosage of the Amikacin
d. None of these
12. —— describes a situation where both the microorganisms and host species live together with mutual benefit
a. Disease
b. Commensalism
c. Symbiosis
d. None of these
13. —— are microorganisms that live on a living host without causing any injury to the host.
a. Saprophytes
b. Parasites
c. Commensals
d. Pathogens
14. —– is the host who continues to harbor the microorganism even after recovering from the clinical disease caused by the same pathogen
a. Healthy carrier
b. Convalescent carrier
c. Temporary carrier
d. Chronic carrier
15. —- is the time interval between the entry of infective agent and the onset of clinical manifestations of disease
a. Incubation period
b. Prodrome period
c. Specific illness period
d. Recovery period
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