Question 1

Who established the current system of nomenclature for organisms, which is still used in modern microbiology?

Accepted Answer

Linnaeus

Question 2

According to scientific nomenclature, each organism is assigned two names: the genus and the ____.

Accepted Answer

specific epithet

Question 3

Archaea, often found in extreme environments, are divided into how many main groups?

Accepted Answer

Three main groups

Question 4

In 1978, Carl Woese devised a system of classification that groups organisms into the domains Bacteria, Archaea, and ____.

Accepted Answer

Eukarya

Question 5

The domain Eukarya includes all of the following EXCEPT:

Accepted Answer

Viruses

Question 6

Robert Koch is best known for which of the following contributions to microbiology?

Accepted Answer

Proved that bacteria can cause disease

Question 7

Who discovered a chemotherapeutic agent effective against syphilis, marking a milestone in antimicrobial therapy?

Accepted Answer

Ehrlich

Question 8

Which scientists are credited with discovering the double-helix structure of DNA?

Accepted Answer

Watson and Crick

Question 9

Robert Koch developed his postulates while identifying the cause of which disease?

Accepted Answer

Anthrax

Question 10

Which scientist is credited with disproving spontaneous generation through his experiments?

Accepted Answer

Pasteur

Question 11

Pasteur is associated with which of the following discoveries?

Accepted Answer

Discovered the cause of fermentation

Question 12

Which process, developed by Pasteur, uses just enough heat to kill most (but not all) bacteria that cause spoilage in beverages?

Accepted Answer

Pasteurization

Question 13

Which of the following causes a wide range of human infections, including pimples, boils, pneumonia, food poisoning, and surgical wound infections?

Accepted Answer

Staphylococcus aureus

Question 14

Which of the following is NOT an example of an emerging infectious disease?

Accepted Answer

Malaria

Question 15

A disease affecting a large number of individuals in a short period of time on a global scale is called a:

Accepted Answer

Pandemic

Question 16

Which of the following is NOT a natural human defense against disease?

Accepted Answer

Penicillin

Question 17

Which of the following is an example of a hemorrhagic fever virus?

Accepted Answer

Ebola virus

Question 18

Bacillus thuringiensis is used primarily as:

Accepted Answer

A natural insecticide

Question 19

Bioremediation is best defined as the use of microbes to:

Accepted Answer

Clean up pollutants and toxic wastes

Question 20

Which element can only be converted by bacteria into a form that is available to plants and animals?

Accepted Answer

Nitrogen

Question 21

Who challenged the case for spontaneous generation with the concept of biogenesis?

Accepted Answer

Virchow

Fundamental Concepts in Microbial Nomenclature, Classification, and Historical Discoveries

Study Guide - Practice Questions