Question 1

All pathogens known to infect humans have been identified at this point in time.

Accepted Answer

A) True 
 B)False

Question 2

Biogenesis refers to the

Accepted Answer

A)   germ theory of disease.
B)   spontaneous generation of organisms from nonliving matter.
C)   development of aseptic technique.
D)   development of life forms from preexisting life forms.

Question 3

The term used to describe a disease-causing microorganism is

Accepted Answer

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

Question 4

Recombinant DNA refers to the

Accepted Answer

A)   study of the function of genes.
B)   synthesis of proteins from genes.
C)   interaction between human and bacterial cells.
D)   study of bacterial ribosomes.
E)   DNA resulting when genes from one organism are inserted into another organism.

Question 5

Which disease has been eliminated through the use of vaccines?

Accepted Answer

A)   smallpox
B)   measles
C)   tuberculosis
D)   influenza
E)   rubella

Question 6

Each of the following organisms would be considered a microbe EXCEPT

Accepted Answer

A)   mushroom.
B)   yeast.
C)   virus.
D)   protozoan.
E)   bacterium.

Question 7

All cells possess a cell wall.

Accepted Answer

A) True 
 B)False

Question 8

Who is credited with first observing cells?

Accepted Answer

A)   Robert Koch
B)   Robert Hooke
C)   Anton van Leeuwenhoek
D)   Louis Pasteur
E)   Carolus Linnaeus

Question 9

Infectious disease is almost totally eradicated in our world.

Accepted Answer

A) True 
 B)False

Question 10

Proof that a microbe could cause disease was provided by

Accepted Answer

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

Question 11

Commercial utilization of microbial products has become increasingly popular due to their environmentally friendly nature. Production of these products which are readily degraded and, thus, non-toxic typically utilizes

Accepted Answer

A)   organic solvents.
B)   alcohol.
C)   organic acids.
D)   enzymes.
E)   soap.

Question 12

Penicillin was discovered by accident by

Accepted Answer

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

Question 13

Common commercial benefits of microorganisms include synthesis of

Accepted Answer

A)   riboflavin.
B)   acetone.
C)   insulin.
D)   aspirin.
E)   riboflavin, acetone and insulin.

Question 14

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.

Question 15

In the name Staphylococcus aureus, aureus is the

Accepted Answer

A)   genus.
B)   domain name.
C)   kingdom.
D)   family name.
E)   species.

Question 16

Archaea differ from bacteria in that archaea

Accepted Answer

A)   use organic compounds for food.
B)   are prokaryotic.
C)   reproduce by binary fission.
D)   lack nuclei.
E)   have diverse cell wall compositions.

Question 17

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.

Question 18

A prokaryotic cell may possess each of the following cellular components EXCEPT

Accepted Answer

A)   ribosomes.
B)   a cell membrane.
C)   a nucleus.
D)   a cell wall.
E)   flagella.

Question 19

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.

Question 20

Which physician is first associated with vaccination?

Accepted Answer

A)   Ehrlich
B)   Jenner
C)   Escherich
D)   Lister
E)   Koch

Exam 1: The Microbial World and You

Recombinant DNA refers to the

Correct AnswerverifiedShow Answer

All pathogens known to infect humans have been identified at this point in time.

Correct AnswerverifiedShow Answer

Who is credited with first observing cells?

Correct AnswerverifiedShow Answer

Each of the following organisms would be considered a microbe EXCEPT

Correct AnswerverifiedShow Answer

A prokaryotic cell may possess each of the following cellular components EXCEPT

Correct AnswerverifiedShow Answer

Which disease has been eliminated through the use of vaccines?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Biogenesis refers to the

Correct AnswerverifiedShow Answer

The term used to describe a disease-causing microorganism is

Correct AnswerverifiedShow Answer

Which physician is first associated with vaccination?

Correct AnswerverifiedShow Answer

Proof that a microbe could cause disease was provided by

Correct AnswerverifiedShow Answer

Commercial utilization of microbial products has become increasingly popular due to their environmentally friendly nature. Production of these products which are readily degraded and, thus, non-toxic typically utilizes

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Classification of organisms into three domains is based on

Correct AnswerverifiedShow Answer

Penicillin was discovered by accident by

Correct AnswerverifiedShow Answer

All cells possess a cell wall.

Correct AnswerverifiedShow Answer

Common commercial benefits of microorganisms include synthesis of

Correct AnswerverifiedShow Answer

Infectious disease is almost totally eradicated in our world.

Correct AnswerverifiedShow Answer

Archaea differ from bacteria in that archaea

Correct AnswerverifiedShow Answer

In the name Staphylococcus aureus, aureus is the

Correct AnswerverifiedShow Answer

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