Question 1

Microbial biochemistry involves the discovery of microbial ________ and the ________ they perform.

Accepted Answer

A)  biomolecules / functions
B)  enzymes / catalyses
C)  metabolic pathways / reactions
D)  biomolecules,enzymes,and metabolic pathways / functionsE) B) and C)
F) C) and D)

Question 2

Louis Pasteur developed the vaccine(s) for

Accepted Answer

A)  anthrax.
B)  fowl cholera.
C)  rabies.
D)  anthrax,fowl cholera,and rabies.E) C) and D)
F) All of the above

Question 3

All microorganisms require molecular oxygen to carry on life functions.

Accepted Answer

A) True 
 B)False

Question 4

Bioremediation ________ by introducing pollutant-consuming microorganisms or specific nutrients that help microorganisms degrade pollutants.

Accepted Answer

A)  accelerates the natural cleanup process
B)  exploits genetic exchange mechanisms
C)  invokes microbial evolution
D)  uses chemotaxis of biodegrading microorganismsE) All of the above
F) C) and D)

Question 5

Today,the enrichment culture technique developed over a century ago by Martinus Beijerinck remains a feasible approach to discovering bacteria capable of degrading pollutants.

Accepted Answer

A) True 
 B)False

Question 6

Deduce why viruses are excluded from the ribosomal RNA-based tree of life.

Accepted Answer

A)  Some viruses contain multiple strands of RNA.
B)  Their genetic elements cannot be sequenced.
C)  They can infect other organisms,which complicates the genetic comparisons.
D)  They lack ribosomal RNA.E) C) and D)
F) B) and D)

Question 7

Not only do some microorganisms tolerate extremely hot temperatures,some actually require high temperatures for optimal growth.

Accepted Answer

A) True 
 B)False

Question 8

Robert Koch contributed to the field of microbiology by being the first person to

Accepted Answer

A)  develop the tuberculin test.
B)  formulate four postulates for definitively linking a specific microorganism to a specific disease.
C)  use agar as a solidifying agent in growth media.
D)  develop the tuberculin test,formulate four postulates for definitively linking a specific microorganism to a specific disease,and use agar as a solidifying agent in growth media.E) C) and D)
F) B) and C)

Question 9

Compare and contrast the leading causes of death in 1900 with the leading causes of death today.What roles have microbiologists played in the dramatic changes that are evident?

Accepted Answer

Answers will vary,but a focus ...

Question 10

Bacillus anthracis deficient in its ability to differentiate would not be able to

Accepted Answer

A)  chemotax towards growth substrates.
B)  create vessicles.
C)  form endospores.
D)  grow without additional supplemented nutrients.E) B) and C)
F) A) and D)

Question 11

Using specific examples,explain why it is sometimes impossible to satisfy Robert Koch's postulates.

Accepted Answer

Answers will vary,but one issue is the c...

Question 12

Cyanobacteria and purple bacteria both obtain energy from light.However,only the ________ are capable of releasing ________.

Accepted Answer

A)  cyanobacteria / organic compounds
B)  cyanobacteria / oxygen
C)  purple bacteria / organic compounds
D)  purple bacteria / oxygenE) All of the above
F) B) and C)

Question 13

Regarding early life on Earth,

Accepted Answer

A)  microbial life existed for billions of years before plant and animal life.
B)  microbial life existed long before animals but has been around for about the same amount of time as plants.
C)  microbial life,plant life,and animal life all appeared at about the same time.
D)  it is impossible to determine which type of life first appeared.E) All of the above
F) A) and B)

Question 14

The discipline of microbiology is intimately associated with biochemistry and genetics,because cells are both biochemical catalysts and genetic coding devices.

Accepted Answer

A) True 
 B)False

Question 15

Compare and contrast the functions microbes serve in the digestive systems of both humans and rumens (e.g.,cattle).

Accepted Answer

Answers will vary but should focus on hu...

Question 16

Developments in the fields of immunology and medical microbiology were practical extensions of the work of

Accepted Answer

A)  Sergei Winogradsky.
B)  Antoni van Leeuwenhoek.
C)  Joseph Lister.
D)  Robert Koch.E) A) and B)
F) A) and C)

Question 17

Approximately two billion years ago,________ were primarily responsible for initially oxygenating Earth.

Accepted Answer

A)  algae
B)  Archaea
C)  cyanobacteria
D)  purple sulfur bacteriaE) A) and B)
F) C) and D)

Question 18

Both environmental conditions and nutrient resources strongly influence the composition of a microbial community.

Accepted Answer

A) True 
 B)False

Question 19

The structure that confers structural strength on the cell is known as the

Accepted Answer

A)  cytoplasmic membrane.
B)  cell wall.
C)  ribosome.
D)  cytoplasm.E) None of the above
F) All of the above

Question 20

Transparent double-sided dishes used for growing microbes are most commonly called

Accepted Answer

A)  Petri dishes.
B)  baker dishes.
C)  sterilization plates.
D)  culture medium plates.E) All of the above
F) A) and D)

Exam 1: Microorganisms and Microbiology

Cyanobacteria and purple bacteria both obtain energy from light.However,only the ________ are capable of releasing ________.

Correct AnswerverifiedShow Answer

Transparent double-sided dishes used for growing microbes are most commonly called

Correct AnswerverifiedShow Answer

Compare and contrast the functions microbes serve in the digestive systems of both humans and rumens (e.g.,cattle).

Correct AnswerverifiedAnswers will vary but should focus on hu...View AnswerShow Answer

Using specific examples,explain why it is sometimes impossible to satisfy Robert Koch's postulates.

Correct AnswerverifiedAnswers will vary,but one issue is the c...View AnswerShow Answer

Today,the enrichment culture technique developed over a century ago by Martinus Beijerinck remains a feasible approach to discovering bacteria capable of degrading pollutants.

Correct AnswerverifiedShow Answer

Deduce why viruses are excluded from the ribosomal RNA-based tree of life.

Correct AnswerverifiedShow Answer

The discipline of microbiology is intimately associated with biochemistry and genetics,because cells are both biochemical catalysts and genetic coding devices.

Correct AnswerverifiedShow Answer

Approximately two billion years ago,________ were primarily responsible for initially oxygenating Earth.

Correct AnswerverifiedShow Answer

The structure that confers structural strength on the cell is known as the

Correct AnswerverifiedShow Answer

Bioremediation ________ by introducing pollutant-consuming microorganisms or specific nutrients that help microorganisms degrade pollutants.

Correct AnswerverifiedShow Answer

Compare and contrast the leading causes of death in 1900 with the leading causes of death today.What roles have microbiologists played in the dramatic changes that are evident?

Correct AnswerverifiedAnswers will vary,but a focus ...View AnswerShow Answer

All microorganisms require molecular oxygen to carry on life functions.

Correct AnswerverifiedShow Answer

Developments in the fields of immunology and medical microbiology were practical extensions of the work of

Correct AnswerverifiedShow Answer

Both environmental conditions and nutrient resources strongly influence the composition of a microbial community.

Correct AnswerverifiedShow Answer

Regarding early life on Earth,

Correct AnswerverifiedShow Answer

Louis Pasteur developed the vaccine(s) for

Correct AnswerverifiedShow Answer

Robert Koch contributed to the field of microbiology by being the first person to

Correct AnswerverifiedShow Answer

Bacillus anthracis deficient in its ability to differentiate would not be able to

Correct AnswerverifiedShow Answer

Not only do some microorganisms tolerate extremely hot temperatures,some actually require high temperatures for optimal growth.

Correct AnswerverifiedShow Answer

Microbial biochemistry involves the discovery of microbial ________ and the ________ they perform.

Correct AnswerverifiedShow Answer

Cyanobacteria and purple bacteria both obtain energy from light.However,only the are capable of releasing .

Correct Answer
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Answers will vary but should focus on hu...
View Answer

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Answers will vary,but one issue is the c...
View Answer

Correct Answer
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Answers will vary,but a focus ...
View Answer

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Microbial biochemistry involves the discovery of microbial and the they perform.

Correct Answer
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