Question 1

Which of the following best describes a microorganism?

Accepted Answer

An organism that is too small to be seen without a microscope

Question 2

Which of the following is a correct example of scientific naming according to Linnaeus's system?

Accepted Answer

$	extit{Homo sapiens}$

Question 3

Which of the following statements about prokaryotes is TRUE?

Accepted Answer

They reproduce by binary fission

Question 4

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

Accepted Answer

Archaea

Question 5

Which of the following is a function of normal microbiota in the human body?

Accepted Answer

Preventing the growth of pathogens by occupying a niche

Question 6

Which scientist is credited with disproving spontaneous generation by using an S-shaped flask?

Accepted Answer

Louis Pasteur

Question 7

Which of the following is NOT a characteristic of viruses?

Accepted Answer

They have both DNA and RNA in their core

Question 8

Which of the following statements about fungi is correct?

Accepted Answer

Fungi use organic chemicals for energy and have chitin cell walls

Question 9

Which process is used by bacteria to reproduce?

Accepted Answer

Binary fission

Question 10

Which of the following best explains why viruses are not included in the classification of living organisms?

Accepted Answer

They are not composed of cells and cannot reproduce independently

Question 11

Which scientist is associated with the discovery of penicillin?

Accepted Answer

Alexander Fleming

Question 12

Which of the following is an example of a eukaryotic microorganism?

Accepted Answer

Fungi

Question 13

Which of the following statements about algae is TRUE?

Accepted Answer

Algae use photosynthesis for energy and have cellulose cell walls

Question 14

Which of the following is a correct application of Koch’s postulates?

Accepted Answer

Demonstrating that a specific bacterium causes a specific disease

Question 15

Which of the following best describes the process of fermentation?

Accepted Answer

Conversion of sugar to alcohol in the absence of oxygen

Question 16

Which of the following is a reason why knowledge of microorganisms is important in medicine?

Accepted Answer

It allows humans to prevent disease occurrence by using aseptic techniques

Question 17

Which of the following is an example of an emerging infectious disease (EID)?

Accepted Answer

Ebola

Question 18

Which of the following statements about the Woes-Fox classification system is correct?

Accepted Answer

It is based on the process of evolution and hereditary changes over generations

Question 19

Which of the following is a correct statement about the role of biotechnology in microbiology?

Accepted Answer

It uses microbes to produce foods, chemicals, and genetically modified organisms

Question 20

Which of the following best explains why antibiotics are not effective against viral infections?

Accepted Answer

Viruses lack the cellular structures targeted by antibiotics

Introduction to Microbiology: The Microbial World and You

Study Guide - Practice Questions