1. Which of the following bacteria was not discovered byRobert Koch?
a) Bacillus anthracis
b) Mycobacterium tuberculosis
c) Salmonella typhi
d) Vibrio cholerae
2. Which of the following scientist first described the usefulness ofAzotobacteras a free-living nitrogen-fixing bacteria?
a) H. Hellriegel
b) H. Wilfarth
c) Martinus willem Beijerinick
d) Sergei Winogradsky
3. Which of the following scientist first showed a mutually beneficial relationship between bacteria and leguminous plants?
a) H. Hellriegel and H. Wilfarth
b) Nocard and Roux
c) Sergei Winogradsky and Martinus Willem Beijerinck
d) Welch and Nuttall
4. All of the following scientists gotNobel Prize for their contribution to the field of Microbiologyexcept
a) Antony Van Leeuwenhoek
b) Elie Metchnikoff
c) Paul Ehrlich
d) Robert Koch
5. All of the following scientists supported the idea of “spontaneous generation” of animals except:
a) Aristotle
b) Francesco Redi
c) John Needham
d) Felix Archimede Pouchet
6. Which of the following scientist tried to disprove the spontaneous generation theory by passing air through cotton into flasks containing heated broth?
a) Franz Schulze
b) H. Schroder and T. Von Dusch
c) Lazaro Spallanzani
d) Theodor Schwann
7. Which of the following scientist tried to disprove spontaneous generation theory by passing air into his flasks through red hot tubes?
a) Franz Schulze
b) H. Schroder and T. Von Dusch
c) Lazaro Spallanzani
d) Theodor Schwann
8. Which of the following scientist tried to disprove Spontaneous generation theory by using simple goose-necked flasks?
a) Franz Schulze
b) H. Schroder and T. Von Dusch
c) Louis Pasteur
d) Theodor Schwann
9. Which of the following scientist tried to disprove the spontaneous generation theory by passing air through strong acid solutions into boiled infusions?
a) Franz Schulze
b) H. Schroder and T. Von Dusch
c) Louis Pasteur
d) Theodor Schwann
10. Which of the following scientist carried out an experiment in a specially designed box to prove dust carried the germs?
a) H. Schroder and T. Von Dusch
b) John Tyndall
c) Lazaro Spallanzani
d) Louis Pasteur
Answer Keys
- c) Salmonella typhi2.c) Martinus willem Beijerinick3.c) Sergei Winogradsky and Martinus Willem Beijerinck (Note: Sergei Winogradsky is also known as the” father of soil microbiology”).4. a) Antony Van Leeuwenhoek {Koch got Nobel prize in 1905, Eile Metchnikoff (also known as the father of Natural Immunity) and Paul Ehrlich got a Nobel prize (combined) in 1908}.Read here: Nobel Prizes Awarded for Research in Microbiology and Immunology5.b) Francesco Redi (He is one of the first few who tried to disprove the theory of spontaneous generation.6.b) H. Schroder and T. Von Dusch (the experiment was done in 1854; no growth of microorganisms was seen in the infusion).7.d) Theodor Schwann8**.c)** Louis Pasteur9.a) Franz Schulze. He (1815-1873) passed air through conc. KOH or Sulfuric acid.10.b) John Tyndall
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