MIC 205A Chapter 1 Exam Questions With
Accurate Answers
Which defines spontaneous generation? - ANSWER Life arose from non-living matter
John Needham assumed that microorganisms appearing in boiled broth did so by
spontaneous generation because - ANSWER He believed that boiling would kill any
living thing in the broth
The theory that living things come from other living things is - ANSWER Biogenesis
What was the contribution of Cohn and Tyndall? - ANSWER Recognized the existence of
heat-resistant microbes and endospores
Unlike the term microorganism, the word microbe also includes - ANSWER Viruses
The disproving of spontaneous generation led to an era called - ANSWER 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? - ANSWER Spontaneous generation
Rank the steps in the scientific process in order. Start with the earliest at the top.
Instructions - ANSWER
John Needham produced results that Blank______ spontaneous generation when he
showed that broths that had been boiled and then sealed with a cork Blank______. -
ANSWER support; could still give rise to microorganisms
The results collected by observation and experimentation during the scientific method
are called the - ANSWER Data
What is the theory of biogenesis? - ANSWER Living things come from other living things
Benefits of normal microbiota include all EXCEPT which of the following? - ANSWER
They damage host tissue, allowing our immune system to rid the body of microbes
How did John Tyndall provide evidence against spontaneous generation? - ANSWER He
showed that dust does carry microbes.
The germ theory of disease stated that - ANSWER Microorganisms could cause infection
and disease
(T/F) Without microorganisms, we would run out of certain nutrients. - ANSWER True
, Developing a testable hypothesis and defining the specific methods to be used to test
the hypothesis is the next step after - ANSWER 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) - ANSWER
Control
Today, the bacteria added to some fermented milk products are advertised as -
ANSWER Probiotics
Which of the following statements about the normal microbiota is FALSE? - ANSWER
Frequently is involved in helping "Old friends" cause severe disease and possible death.
Which group includes some members that can convert N2 (the most common gas in the
atmosphere) to a form other organisms can use to make proteins and nucleic acids? -
ANSWER Microbes
Which is an example of bioremediation? - ANSWER Using microbes to digest oil after a
spill in the ocean.
Which three of the following are manufactured by microbial fermentation? - ANSWER
Yogurt, Beer, Cheese
In research, a model organism should - ANSWER function in a manner similar to other
organisms
The "Old Friends" hypothesis suggests that - ANSWER early exposure to certain
microorganisms helps protect individuals from allergies, asthma, and some other
diseases
In general, disease-causing organisms are referred to as which of the following? -
ANSWER Pathogens
An outbreak of foot-and-mouth disease in England was controlled by - ANSWER
destroying millions of pig, sheep, and cattle
Which of the following describes the use of microorganisms to hasten the degradation
of pollutants? - ANSWER Bioremediation
Pasteur is famous for his experiments that helped disprove spontaneous generation.
After showing that that fluid in the swan-neck flasks remained sterile even when
exposed to air, Pasteur tipped the flasks so that bacteria could enter the fluid. He
demonstrated that nothing in his original set-up prevented bacteria from growing in the
flask. What part of the scientific method does this represent? - ANSWER Control
Since 1900, deaths resulting from infectious diseases has decreased due to - ANSWER
Development of medications and vaccines
Accurate Answers
Which defines spontaneous generation? - ANSWER Life arose from non-living matter
John Needham assumed that microorganisms appearing in boiled broth did so by
spontaneous generation because - ANSWER He believed that boiling would kill any
living thing in the broth
The theory that living things come from other living things is - ANSWER Biogenesis
What was the contribution of Cohn and Tyndall? - ANSWER Recognized the existence of
heat-resistant microbes and endospores
Unlike the term microorganism, the word microbe also includes - ANSWER Viruses
The disproving of spontaneous generation led to an era called - ANSWER 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? - ANSWER Spontaneous generation
Rank the steps in the scientific process in order. Start with the earliest at the top.
Instructions - ANSWER
John Needham produced results that Blank______ spontaneous generation when he
showed that broths that had been boiled and then sealed with a cork Blank______. -
ANSWER support; could still give rise to microorganisms
The results collected by observation and experimentation during the scientific method
are called the - ANSWER Data
What is the theory of biogenesis? - ANSWER Living things come from other living things
Benefits of normal microbiota include all EXCEPT which of the following? - ANSWER
They damage host tissue, allowing our immune system to rid the body of microbes
How did John Tyndall provide evidence against spontaneous generation? - ANSWER He
showed that dust does carry microbes.
The germ theory of disease stated that - ANSWER Microorganisms could cause infection
and disease
(T/F) Without microorganisms, we would run out of certain nutrients. - ANSWER True
, Developing a testable hypothesis and defining the specific methods to be used to test
the hypothesis is the next step after - ANSWER 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) - ANSWER
Control
Today, the bacteria added to some fermented milk products are advertised as -
ANSWER Probiotics
Which of the following statements about the normal microbiota is FALSE? - ANSWER
Frequently is involved in helping "Old friends" cause severe disease and possible death.
Which group includes some members that can convert N2 (the most common gas in the
atmosphere) to a form other organisms can use to make proteins and nucleic acids? -
ANSWER Microbes
Which is an example of bioremediation? - ANSWER Using microbes to digest oil after a
spill in the ocean.
Which three of the following are manufactured by microbial fermentation? - ANSWER
Yogurt, Beer, Cheese
In research, a model organism should - ANSWER function in a manner similar to other
organisms
The "Old Friends" hypothesis suggests that - ANSWER early exposure to certain
microorganisms helps protect individuals from allergies, asthma, and some other
diseases
In general, disease-causing organisms are referred to as which of the following? -
ANSWER Pathogens
An outbreak of foot-and-mouth disease in England was controlled by - ANSWER
destroying millions of pig, sheep, and cattle
Which of the following describes the use of microorganisms to hasten the degradation
of pollutants? - ANSWER Bioremediation
Pasteur is famous for his experiments that helped disprove spontaneous generation.
After showing that that fluid in the swan-neck flasks remained sterile even when
exposed to air, Pasteur tipped the flasks so that bacteria could enter the fluid. He
demonstrated that nothing in his original set-up prevented bacteria from growing in the
flask. What part of the scientific method does this represent? - ANSWER Control
Since 1900, deaths resulting from infectious diseases has decreased due to - ANSWER
Development of medications and vaccines
