Question 1

Normal microbiota are typically found in and on all the following body locations EXCEPT the

Accepted Answer

A)   upper respiratory system.
B)   skin.
C)   mouth.
D)   blood.
E)   colon.F) A) and D)
G) D) and E)

Question 2

Spontaneous generation refers to living cells arising only from other living cells.

Accepted Answer

A) True 
 B)False

Question 3

Proof that a microbe could cause disease was provided by

Accepted Answer

A)   Semmelweis.
B)   Pasteur.
C)   Koch.
D)   Lister.
E)   Wasserman.F) A) and D)
G) B) and D)

Question 4

The use of phenol (carbolic acid)  as a wound disinfectant was first practiced by

Accepted Answer

A)   Pasteur.
B)   Lister.
C)   Holmes.
D)   Koch.
E)   Semmelweis.F) C) and D)
G) A) and C)

Question 5

The term used to describe a disease-causing microorganism is

Accepted Answer

A)   pathogen.
B)   bacterium.
C)   infection.
D)   microbe.
E)   virus.F) C) and D)
G) B) and C)

Question 6

Regarding Louis Pasteurʹs experiments with the S-neck flask, which of the following statements is TRUE?

Accepted Answer

A)   All preexisting microorganisms were killed.
B)   A food source was provided.
C)   Air exchange was involved.
D)   The possibility of contamination was removed.
E)   All of the answer choices are correct.F) C) and D)
G) A) and E)

Question 7

Which physician is first associated with vaccination?

Accepted Answer

A)   Ehrlich
B)   Jenner
C)   Escherich
D)   Lister
E)   KochF) C) and D)
G) A) and B)

Question 8

Classification of organisms into three domains is based on

Accepted Answer

A)   the number of cells in the organism.
B)   cellular proteins.
C)   the presence of a cell wall.
D)   cellular organization.
E)   nutritional requirements.F) All of the above
G) A) and B)

Question 9

Penicillin was discovered by accident by

Accepted Answer

A)   Alexander Fleming.
B)   Joseph Lister.
C)   Edward Jenner.
D)   Robert Koch.
E)   Paul Ehrich.F) C) and D)
G) A) and C)

Question 10

Microbes are associated with life-sustaining benefits as well as life-threatening diseases.

Accepted Answer

A) True 
 B)False

Question 11

The major food producers for other living organisms is/are

Accepted Answer

A)   higher plants.
B)   cyanobacteria.
C)   algae.
D)   higher plants and algae.
E)   higher plants, cyanobacteria, and algae.F) B) and D)
G) C) and D)

Question 12

Microorganisms are involved in each of the following processes EXCEPT

Accepted Answer

A)   O₂ production.
B)   infection.
C)   smog production.
D)   decomposition of organic material.
E)   food production.F) A) and B)
G) A) and C)

Question 13

Microorganisms are essential to our life. Each of the following is an example of a beneficial function of microorganisms EXCEPT

Accepted Answer

A)   agriculture.
B)   alternative fuel production.
C)   gene therapy.
D)   increased number of illnesses.
E)   bioremediation.F) A) and B)
G) C) and E)

Question 14

Which of the following is NOT a domain in the three-domain system?

Accepted Answer

A)   archaea
B)   eukarya
C)   bacteria
D)   animaliaE) None of the above
F) A) and D)

Question 15

Which of the following statements about biofilms is FALSE?

Accepted Answer

A)   Biofilms on medical devices cause infections.
B)   Biofilms in pipes can block the flow of water.
C)   Biofilms on rocks provide food for animal life.
D)   Compared to free-living bacteria, biofilms are more sensitive to antibiotics.
E)   Biofilms in your body protect mucous membranes from harmful microbes.F) None of the above
G) A) and B)

Question 16

Anton van Leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms.

Accepted Answer

A) True 
 B)False

Question 17

A student has obtained a sample of pond water for study. Using the high -power lens, he observes several cells with nuclei. He can conclude that the cells are NOT bacteria.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following findings was essential for Edward Jennerʹs vaccination process?

Accepted Answer

A)   Someone who recovers from a disease will not acquire that disease again.
B)   Exposure to a milder disease form may produce immunity.
C)   Pathogenic microorganisms infect all humans and animals in the same manner.
D)   Disease is caused by viruses.
E)   A weakened microorganism will not cause disease.F) A) and E)
G) B) and E)

Question 19

The first step for directly linking a microbe to a specific disease according to Kochʹs postulates is to

Accepted Answer

A)   compare the blood of a sick animal to blood obtained from a healthy animal.
B)   culture the blood or other body fluid from a diseased animal using nutrient medium.
C)   inject a sample of blood or other body fluid from a diseased animal into a healthy animal.
D)   obtain a sample of blood or other body fluid from a diseased animal.
E)   isolate microbes from the blood of healthy animals.F) B) and C)
G) A) and D)

Exam 1: The Microbial World and You

A student has obtained a sample of pond water for study. Using the high -power lens, he observes several cells with nuclei. He can conclude that the cells are NOT bacteria.

Correct Answer
verified

Which of the following is NOT a domain in the three-domain system?

Correct Answer
verified

Which of the following statements about biofilms is FALSE?

Correct Answer
verified

Which physician is first associated with vaccination?

Correct Answer
verified

The use of phenol (carbolic acid) as a wound disinfectant was first practiced by

Correct Answer
verified

Penicillin was discovered by accident by

Correct Answer
verified

Classification of organisms into three domains is based on

Correct Answer
verified

Which of the following findings was essential for Edward Jennerʹs vaccination process?

Correct Answer
verified

Anton van Leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms.

Correct Answer
verified

The term used to describe a disease-causing microorganism is

Correct Answer
verified

Spontaneous generation refers to living cells arising only from other living cells.

Correct Answer
verified

Regarding Louis Pasteurʹs experiments with the S-neck flask, which of the following statements is TRUE?

Correct Answer
verified

Microorganisms are involved in each of the following processes EXCEPT

Correct Answer
verified

Microorganisms are essential to our life. Each of the following is an example of a beneficial function of microorganisms EXCEPT

Correct Answer
verified

Microbes are associated with life-sustaining benefits as well as life-threatening diseases.

Correct Answer
verified

Proof that a microbe could cause disease was provided by

Correct Answer
verified

The major food producers for other living organisms is/are

Correct Answer
verified

Normal microbiota are typically found in and on all the following body locations EXCEPT the

Correct Answer
verified

The first step for directly linking a microbe to a specific disease according to Kochʹs postulates is to

Correct Answer
verified

Exam 1: The Microbial World and You

A student has obtained a sample of pond water for study. Using the high -power lens, he observes several cells with nuclei. He can conclude that the cells are NOT bacteria.

Correct AnswerverifiedShow Answer

Which of the following is NOT a domain in the three-domain system?

Correct AnswerverifiedShow Answer

Which of the following statements about biofilms is FALSE?

Correct AnswerverifiedShow Answer

Which physician is first associated with vaccination?

Correct AnswerverifiedShow Answer

The use of phenol (carbolic acid) as a wound disinfectant was first practiced by

Correct AnswerverifiedShow Answer

Penicillin was discovered by accident by

Correct AnswerverifiedShow Answer

Classification of organisms into three domains is based on

Correct AnswerverifiedShow Answer

Which of the following findings was essential for Edward Jennerʹs vaccination process?

Correct AnswerverifiedShow Answer

Anton van Leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms.

Correct AnswerverifiedShow Answer

The term used to describe a disease-causing microorganism is

Correct AnswerverifiedShow Answer

Spontaneous generation refers to living cells arising only from other living cells.

Correct AnswerverifiedShow Answer

Regarding Louis Pasteurʹs experiments with the S-neck flask, which of the following statements is TRUE?

Correct AnswerverifiedShow Answer

Microorganisms are involved in each of the following processes EXCEPT

Correct AnswerverifiedShow Answer

Microorganisms are essential to our life. Each of the following is an example of a beneficial function of microorganisms EXCEPT

Correct AnswerverifiedShow Answer

Microbes are associated with life-sustaining benefits as well as life-threatening diseases.

Correct AnswerverifiedShow Answer

Proof that a microbe could cause disease was provided by

Correct AnswerverifiedShow Answer

The major food producers for other living organisms is/are

Correct AnswerverifiedShow Answer

Normal microbiota are typically found in and on all the following body locations EXCEPT the

Correct AnswerverifiedShow Answer

The first step for directly linking a microbe to a specific disease according to Kochʹs postulates is to

Correct AnswerverifiedShow Answer

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