Question 1

Which of the following statements best describes the role of normal microbiota in human health?

Accepted Answer

Normal microbiota help maintain health by preventing the growth of pathogenic microbes and may help train the immune system.

Question 2

Which of the following is NOT a characteristic of bacteria?

Accepted Answer

They contain a nucleus surrounded by a nuclear membrane.

Question 3

Which scientist's experiment using S-shaped flasks provided strong evidence against spontaneous generation?

Accepted Answer

Louis Pasteur

Question 4

Which of the following is the correct format for writing the scientific name of the bacterium that inhabits the human colon?

Accepted Answer

$$Escherichia~coli$$

Question 5

Which group of microorganisms is NOT classified as prokaryotes?

Accepted Answer

Fungi

Question 6

Which of the following best describes the process of pasteurization as developed by Louis Pasteur?

Accepted Answer

Applying a high heat for a short time to kill harmful bacteria without evaporating the beverage.

Question 7

Which of the following is NOT a function of microbes in the environment?

Accepted Answer

Causing all infectious diseases in humans

Question 8

Which of the following is a correct statement about viruses?

Accepted Answer

Viruses are acellular and can only replicate inside living host cells.

Question 9

Which of the following is an example of biotechnology that uses recombinant DNA technology?

Accepted Answer

Producing human insulin in bacteria

Question 10

Which of the following best explains Koch’s postulates?

Accepted Answer

A series of experimental steps to demonstrate that a specific microbe causes a specific disease.

Question 11

Which of the following is a beneficial use of bacteria in agriculture?

Accepted Answer

Fixing atmospheric nitrogen into forms usable by plants

Question 12

Which of the following is a reason why biofilms are medically significant?

Accepted Answer

Bacteria in biofilms are often more resistant to antibiotics.

Question 13

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

Accepted Answer

Protista

Question 14

Which of the following best describes the difference between spontaneous generation and biogenesis?

Accepted Answer

Spontaneous generation states that life arises from nonliving matter, while biogenesis states that living cells arise only from preexisting living cells.

Question 15

Which of the following is a correct pairing of a scientist and their contribution to microbiology?

Accepted Answer

Robert Koch – Established experimental steps for linking a specific microbe to a specific disease

Question 16

Which of the following is a real-world example of bioremediation?

Accepted Answer

Using bacteria to degrade oil spills in the ocean

Question 17

Which of the following is NOT a factor contributing to the emergence of infectious diseases?

Accepted Answer

Decreased human contact with the environment

Question 18

Which of the following best describes the difference between microbial genetics and genomics?

Accepted Answer

Microbial genetics is the study of how microbes inherit traits, while genomics is the study of an organism’s entire set of genes.

Question 19

Which of the following is an example of an emerging infectious disease?

Accepted Answer

COVID-19

Question 20

Which of the following statements about antibiotics is correct?

Accepted Answer

Antibiotics are chemicals produced by bacteria and fungi that inhibit or kill other microbes.

Chapter 1: The Microbial World and You – Foundations of Microbiology

Study Guide - Practice Questions

Study Guide - Flashcards