Question 1

Which of the following is considered a microbe but NOT a microorganism?

Accepted Answer

SARS-CoV-2 (Covid-19 virus)

Question 2

Which statement best describes microorganisms?

Accepted Answer

Microorganisms are living organisms too small to see with the naked eye.

Question 3

Robert Hooke and Antonie van Leeuwenhoek contributed to microbiology by:

Accepted Answer

Visualizing and describing microorganisms for the first time.

Question 4

Which of the following could NOT be observed with the microscopes used by Robert Hooke and Antonie van Leeuwenhoek?

Accepted Answer

Viruses

Question 5

Taxonomy is the branch of biology concerned with:

Accepted Answer

Naming and classifying organisms.

Question 6

According to the three domains of life, which domain consists of organisms with cells that contain a nucleus?

Accepted Answer

Eukarya

Question 7

Which of the following kingdoms is NOT part of the Eukaryotic Domain?

Accepted Answer

Kingdom Eubacteria

Question 8

The proposal that one type of organism can change into another type over a long period of time is known as:

Accepted Answer

Evolution

Question 9

Autotrophs are also called:

Accepted Answer

Producers

Question 10

Biologists divide living organisms into two groups: autotrophs and heterotrophs, which differ in:

Accepted Answer

Their method of obtaining energy

Question 11

Which of the following is the most inclusive taxonomic category?

Accepted Answer

Domain

Question 12

Which statement about viruses is TRUE?

Accepted Answer

Viruses are infectious agents that require a host cell to replicate.

Question 13

Which scientist first described a common bread mold (Mucor) as a 'microscopical mushroom'?

Accepted Answer

Robert Hooke

Question 14

Which of the following is NOT a characteristic of microorganisms?

Accepted Answer

They are always multicellular.

Question 15

Which of the following statements about the three domains of life is correct?

Accepted Answer

Bacteria and Archaea are both prokaryotic domains.

Question 16

Which of the following best describes the energy flow in ecosystems?

Accepted Answer

Energy flows from the sun to producers and then to consumers, with some energy lost as heat.

Question 17

Which of the following is an example of a heterotroph?

Accepted Answer

A mushroom

Question 18

Which of the following is the correct order of taxonomic categories from most inclusive to least inclusive?

Accepted Answer

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Question 19

Which of the following statements about the common ancestor of life is correct according to the three-domain system?

Accepted Answer

The common ancestor of all life is the last common ancestor of Bacteria, Archaea, and Eukarya.

Question 20

Which of the following is NOT a method by which living organisms acquire energy?

Accepted Answer

Taxonomy

Introduction to Microbiology: Microorganisms, Classification, and Domains of Life

Study Guide - Practice Questions