Introduction To Microbiology (MCB 112)

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| By Kenneth.ovia

Kenneth.ovia

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Quizzes Created: 3 | Total Attempts: 1,818

Questions: 5 | Attempts: 741 | Updated: Jul 24, 2023

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Questions and Answers

1.

Spontaneous generation is known as-----------
- A.
  
  Biogenesis
- B.
  
  Germ theory
- C.
  
  Tyndallisation
- D.
  
  Abiogenesis
Correct Answer
D. Abiogenesis

Explanation
Abiogenesis refers to the now-discredited theory that living organisms can arise spontaneously from inanimate matter. This theory was widely accepted until the 19th century when Louis Pasteur's experiments disproved it and supported the concept of biogenesis, which states that living organisms can only arise from pre-existing living organisms. Therefore, Abiogenesis is the correct answer as it accurately describes the concept of spontaneous generation.

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2.

To achieve sterilization in Antoclave is at-----------and -----------temperature
- A.
  
  30 minutes and 90⁰
- B.
  
  30 minutes and 37⁰
- C.
  
  15 minutes and 121⁰
- D.
  
  15 minutes and 100⁰
Correct Answer
C. 15 minutes and 121⁰

Explanation
The correct answer is 15 minutes and 1210. Sterilization in an autoclave is achieved by subjecting the items to high pressure and high temperature. The combination of 15 minutes and 1210 degrees Fahrenheit is the most effective in killing all microorganisms and achieving sterilization.

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3.

Robert Koch injected pure cultures of bacilli into mice which causes -----------disease
- A.
  
  Phi ausem
- B.
  
  E. Coli
- C.
  
  Anthrax bacteria
- D.
  
  Anthrax
Correct Answer
D. Anthrax

Explanation
Robert Koch injected pure cultures of bacilli into mice which causes Anthrax disease.

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4.

Microorganisms are the causes of infectious disease is Pasteur postulate or-----------
- A.
  
  Germ theory of Dx
- B.
  
  Koch postulate
- C.
  
  Louies pasteur
- D.
  
  Edward Jenner
Correct Answer
A. Germ theory of Dx

Explanation
The correct answer is Germ theory of Dx. The germ theory of disease states that microorganisms, such as bacteria and viruses, are the primary causes of infectious diseases. This theory was developed by Louis Pasteur and Robert Koch in the late 19th century and revolutionized our understanding of how diseases spread and can be prevented. It led to advancements in hygiene, sterilization techniques, and the development of vaccines and antibiotics to combat infectious diseases.

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5.

-----------is the antimicrobial process during which all microorganism is killed or eliminated.
- A.
  
  Disinfection
- B.
  
  Sterilization
- C.
  
  Pasteurization
- D.
  
  Sanitization
Correct Answer
B. Sterilization

Explanation
Sterilization is the correct answer because it refers to the process of completely killing or eliminating all microorganisms, including bacteria, viruses, and fungi. This process is commonly used in healthcare settings, laboratories, and food preparation industries to ensure the complete removal of any potential pathogens or contaminants. Disinfection, pasteurization, and sanitization are all related processes but do not guarantee the complete elimination of all microorganisms like sterilization does.

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Current Version
Jul 24, 2023

Quiz Edited by
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Jul 24, 2020

Quiz Created by
Kenneth.ovia

Introduction To Microbiology (Mcb 112)

Spontaneous generation is known as-----------

To achieve sterilization in Antoclave is at-----------and -----------temperature

Robert Koch injected pure cultures of bacilli into mice which causes -----------disease

Microorganisms are the causes of infectious disease is Pasteur postulate or-----------

-----------is the antimicrobial process during which all microorganism is killed or eliminated.