MIC205A Chapter 1 Exam 2025 Questions
and Answers
Which defines spontaneous generation? - ANS Life arose from non-living matter
John Needham assumed that microorganisms appearing in boiled broth did so by spontaneous
generation because - ANS He believed that boiling would kill any living thing in the broth
The theory that living things come from other living things is - ANS Biogenesis
What was the contribution of Cohn and Tyndall? - ANS Recognized the existence of heat-
resistant microbes and endospores
Unlike the term microorganism, the word microbe also includes - ANS Viruses
The disproving of spontaneous generation led to an era called - ANS Golden Age of
Microbiology
The concept of living things arising from vital forces in non-living or decomposing materials was
known as which of the following? - ANS Spontaneous generation
Rank the steps in the scientific process in order. Start with the earliest at the top.
Instructions - ANS
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, John Needham produced results that Blank______ spontaneous generation when he showed
that broths that had been boiled and then sealed with a cork Blank______. - ANS support;
could still give rise to microorganisms
The results collected by observation and experimentation during the scientific method are
called the - ANS Data
What is the theory of biogenesis? - ANS Living things come from other living things
Benefits of normal microbiota include all EXCEPT which of the following? - ANS They damage
host tissue, allowing our immune system to rid the body of microbes
How did John Tyndall provide evidence against spontaneous generation? - ANS He showed
that dust does carry microbes.
The germ theory of disease stated that - ANS Microorganisms could cause infection and
disease
(T/F) Without microorganisms, we would run out of certain nutrients. - ANS True
Developing a testable hypothesis and defining the specific methods to be used to test the
hypothesis is the next step after - ANS Identifying a research idea
A scientific experiment includes a component that rules out alternative explanations of the
results by showing that the only feature that varied in the experiment was the characteristic
being tested. The component that does this is called a(n) - ANS Control
Today, the bacteria added to some fermented milk products are advertised as -
ANS Probiotics
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
and Answers
Which defines spontaneous generation? - ANS Life arose from non-living matter
John Needham assumed that microorganisms appearing in boiled broth did so by spontaneous
generation because - ANS He believed that boiling would kill any living thing in the broth
The theory that living things come from other living things is - ANS Biogenesis
What was the contribution of Cohn and Tyndall? - ANS Recognized the existence of heat-
resistant microbes and endospores
Unlike the term microorganism, the word microbe also includes - ANS Viruses
The disproving of spontaneous generation led to an era called - ANS Golden Age of
Microbiology
The concept of living things arising from vital forces in non-living or decomposing materials was
known as which of the following? - ANS Spontaneous generation
Rank the steps in the scientific process in order. Start with the earliest at the top.
Instructions - ANS
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, John Needham produced results that Blank______ spontaneous generation when he showed
that broths that had been boiled and then sealed with a cork Blank______. - ANS support;
could still give rise to microorganisms
The results collected by observation and experimentation during the scientific method are
called the - ANS Data
What is the theory of biogenesis? - ANS Living things come from other living things
Benefits of normal microbiota include all EXCEPT which of the following? - ANS They damage
host tissue, allowing our immune system to rid the body of microbes
How did John Tyndall provide evidence against spontaneous generation? - ANS He showed
that dust does carry microbes.
The germ theory of disease stated that - ANS Microorganisms could cause infection and
disease
(T/F) Without microorganisms, we would run out of certain nutrients. - ANS True
Developing a testable hypothesis and defining the specific methods to be used to test the
hypothesis is the next step after - ANS Identifying a research idea
A scientific experiment includes a component that rules out alternative explanations of the
results by showing that the only feature that varied in the experiment was the characteristic
being tested. The component that does this is called a(n) - ANS Control
Today, the bacteria added to some fermented milk products are advertised as -
ANS Probiotics
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
