Question 1

Which of the following is an example of a benefit that microbes provide to humans?

Accepted Answer

Photosynthetic microbes provide oxygen for our planet.

Question 2

Which statement best distinguishes an opportunist pathogen from a pathogen?

Accepted Answer

An opportunist pathogen can become pathogenic under certain conditions.

Question 3

Which of the following best describes the concept of spontaneous generation?

Accepted Answer

Living organisms arise from non-living matter.

Question 4

Which of the following is NOT one of the 7 major agents of microbial diseases known to the world today?

Accepted Answer

Algae

Question 5

What is the endosymbiotic theory in microbiology?

Accepted Answer

Prokaryotes engulfed another cell, leading to the formation of eukaryotic organelles.

Question 6

Which historical figure is credited with developing the first vaccine for rabies?

Accepted Answer

Louis Pasteur

Question 7

What was Joseph Lister's major contribution to microbiology?

Accepted Answer

He developed antiseptic surgery techniques.

Question 8

Which of the following best describes Koch's Postulates?

Accepted Answer

A set of criteria to establish a causative relationship between a microbe and a disease.

Question 9

Which of the following is a correct order in the taxonomic hierarchy from broadest to most specific?

Accepted Answer

Order, Family, Genus, Species

Question 10

A patient develops a bacterial infection after surgery. The bacteria were present on the skin but did not cause disease until the skin was broken. This is an example of:

Accepted Answer

An opportunist pathogen

Question 11

Which of the following is an example of a symbiotic relationship?

Accepted Answer

Bacteria living in the human gut and aiding digestion

Question 12

Which of the following best describes a transient microbiota?

Accepted Answer

Microbes that are present temporarily on the body.

Question 13

Which of the following is a cause of an emerging disease?

Accepted Answer

A disease that travels to another part of the world or is brand new.

Question 14

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

Accepted Answer

Smallpox

Question 15

What is bioterrorism?

Accepted Answer

Attacking a country with a biological agent of disease.

Question 16

Which of the following best defines a prokaryotic species?

Accepted Answer

A group of cells with similar genetic and phenotypic characteristics.

Question 17

Which of the following is a correct example of a symbiotic relationship?

Accepted Answer

Parasitism, where one organism benefits and the other is harmed.

Question 18

If an individual has 2.3 pounds of microbiome in their body, which term best describes the total collection of these microbes?

Accepted Answer

Holobiont

Question 19

Which of the following best describes the germ theory of disease?

Accepted Answer

Diseases are caused by specific microorganisms.

Question 20

A scientist observes that a specific microbe is always found in patients with a certain disease, but not in healthy individuals. Which of Koch's postulates does this observation support?

Accepted Answer

The microbe must be present in every case of the disease.

Fundamental Concepts and History in Microbiology: Study Guide

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