Question 1

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

Accepted Answer

It helps maintain good health by preventing the growth of pathogenic microbes and training the immune system.

Question 2

Which scientist developed the binomial nomenclature system for naming organisms?

Accepted Answer

Carolus Linnaeus

Question 3

Which of the following is NOT a characteristic of bacteria?

Accepted Answer

They are always multicellular.

Question 4

Which domain of life includes organisms that typically live in extreme environments and lack peptidoglycan in their cell walls?

Accepted Answer

Archaea

Question 5

Which of the following is a correct example of binomial nomenclature?

Accepted Answer

Escherichia coli

Question 6

Which branch of microbiology focuses on the study of immunity and the use of vaccines?

Accepted Answer

Immunology

Question 7

Which of the following statements about viruses is TRUE?

Accepted Answer

They consist of a DNA or RNA core surrounded by a protein coat.

Question 8

Which scientist’s experiment with swan-necked flasks provided strong evidence against spontaneous generation?

Accepted Answer

Louis Pasteur

Question 9

Which of the following is a function of soil microbes in the carbon cycle?

Accepted Answer

They decompose organic matter and recycle carbon.

Question 10

Which of the following is a eukaryotic microorganism that absorbs organic chemicals for energy and has chitin cell walls?

Accepted Answer

Fungi

Question 11

Which of the following is NOT a role of microorganisms in applied microbiology?

Accepted Answer

Causing all human diseases

Question 12

Which of the following statements about protozoa is correct?

Accepted Answer

They move by pseudopods, cilia, or flagella.

Question 13

Which of the following is a correct statement about algae?

Accepted Answer

They conduct photosynthesis and produce oxygen.

Question 14

Which of the following is a distinguishing feature of archaea compared to bacteria?

Accepted Answer

Archaea are typically extremophiles.

Question 15

Which of the following is the correct chronological order of major discoveries in the Golden Age of Microbiology?

Accepted Answer

Pasteurization, Koch's Postulates, Discovery of DNA structure

Question 16

Which of the following is the best example of biogenesis?

Accepted Answer

Maggots appearing on decaying meat only when flies lay eggs on it.

Question 17

Which of the following is NOT a branch of microbiology?

Accepted Answer

Botany

Question 18

Which of the following statements about multicellular animal parasites is TRUE?

Accepted Answer

They include flatworms and roundworms called helminths.

Question 19

Which of the following discoveries demonstrated that DNA is the hereditary material?

Accepted Answer

Avery, MacLeod, and McCarty’s experiments in 1944

Question 20

Which of the following is a correct statement about the Germ Theory of Disease?

Accepted Answer

It proposes that microorganisms are responsible for causing certain diseases.

Introduction to Microbiology: The Microbial World and You

Study Guide - Practice Questions