General Microbiology Final Exam Questions and Answers
Question 1
Which of the following are included in the category "microorganisms"?
A) Viruses
B) Yeasts (fungi)
C) Ticks
D) A and B
E) All of the above
Correct Answer
Viruses and Yeasts
Question 2
"Spontaneous Generation" means:
Correct Answer
nonliving matter gives rise to living organisms
Question 3
Who is credited with first observing living microorganisms?
Correct Answer
Anton van Leeuwenhoek
Page 1 of 62
,Question 4
Proponents of the theory of spontaneous generation criticized Louis Jablot's experiment with sealed flasks of broth
because:
Correct Answer
No air was allowed to reach the broth
Question 5
Who discovered that DNA is the molecule of genetic heredity?
Correct Answer
Avery, McCloud, and MacCarty
Question 6
True or False: Koch's Postulates can be fulfilled for every disease that's caused by microorganisms (as long as it's culturable)
Correct Answer
True
Question 7
Who performed an early experiment, with covered and uncovered pieces of meat, that weakened the theory of
spontaneous generation?
Correct Answer
Francesco Redi
Page 2 of 62
,Question 8
The first step for directly linking a microbe to a specific disease according to Koch's postulates is to
Correct Answer
find the microbe in all diseased animals, but no healthy ones
Question 9
In the name "Staphylococcus aureus", "Staphylococcus" is the:
Correct Answer
genus
Question 10
What key aspect of Pasteur's experiment with the S-necked flasks made it more convincing than previous experiments in
the argument against spontaneous generation?
Correct Answer
In Pasteur's experiment, air was allowed to reach the broth unaltered
Question 11
What is the total magnification of a specimen viewed with a 15x ocular lens and a 10x objective lens?
Correct Answer
150x
Page 3 of 62
, Question 12
True or False: Technological improvements in lens-making may someday allow us to see viruses with light microscopes
Correct Answer
False
Question 13
Which of the following resolutions would best allow you to distinguish fine detail in a specimen?
A) 0.2 um
B) 2 um
C) 0.2 mm
D) 2 mm
Correct Answer
0.2 um
Question 14
A microorganism measures 5 um in length. Its length in mm would be:
Correct Answer
0.005 mm
Page 4 of 62
Question 1
Which of the following are included in the category "microorganisms"?
A) Viruses
B) Yeasts (fungi)
C) Ticks
D) A and B
E) All of the above
Correct Answer
Viruses and Yeasts
Question 2
"Spontaneous Generation" means:
Correct Answer
nonliving matter gives rise to living organisms
Question 3
Who is credited with first observing living microorganisms?
Correct Answer
Anton van Leeuwenhoek
Page 1 of 62
,Question 4
Proponents of the theory of spontaneous generation criticized Louis Jablot's experiment with sealed flasks of broth
because:
Correct Answer
No air was allowed to reach the broth
Question 5
Who discovered that DNA is the molecule of genetic heredity?
Correct Answer
Avery, McCloud, and MacCarty
Question 6
True or False: Koch's Postulates can be fulfilled for every disease that's caused by microorganisms (as long as it's culturable)
Correct Answer
True
Question 7
Who performed an early experiment, with covered and uncovered pieces of meat, that weakened the theory of
spontaneous generation?
Correct Answer
Francesco Redi
Page 2 of 62
,Question 8
The first step for directly linking a microbe to a specific disease according to Koch's postulates is to
Correct Answer
find the microbe in all diseased animals, but no healthy ones
Question 9
In the name "Staphylococcus aureus", "Staphylococcus" is the:
Correct Answer
genus
Question 10
What key aspect of Pasteur's experiment with the S-necked flasks made it more convincing than previous experiments in
the argument against spontaneous generation?
Correct Answer
In Pasteur's experiment, air was allowed to reach the broth unaltered
Question 11
What is the total magnification of a specimen viewed with a 15x ocular lens and a 10x objective lens?
Correct Answer
150x
Page 3 of 62
, Question 12
True or False: Technological improvements in lens-making may someday allow us to see viruses with light microscopes
Correct Answer
False
Question 13
Which of the following resolutions would best allow you to distinguish fine detail in a specimen?
A) 0.2 um
B) 2 um
C) 0.2 mm
D) 2 mm
Correct Answer
0.2 um
Question 14
A microorganism measures 5 um in length. Its length in mm would be:
Correct Answer
0.005 mm
Page 4 of 62
