Question 1

Which of the following statements best describes the binomial nomenclature system established by Carolus Linnaeus?

Accepted Answer

It assigns a genus and species name, with the genus capitalized and the species in lowercase.

Question 2

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

Accepted Answer

Archaea

Question 3

A scientist discovers a unicellular organism that is motile, lacks a nucleus, and can form chains. Which group does this organism most likely belong to?

Accepted Answer

Bacteria

Question 4

Which of the following is NOT a characteristic of fungi?

Accepted Answer

Can carry out photosynthesis.

Question 5

Which equation best represents the process by which algae use light, water, and carbon dioxide for food production?

Accepted Answer

$6CO_2 + 6H_2O + light \rightarrow C_6H_{12}O_6 + 6O_2$

Question 6

Which scientist is credited with disproving spontaneous generation using meat and maggots?

Accepted Answer

Francesco Redi

Question 7

Which of the following is a foundational principle of medical microbiology established by Koch’s postulates?

Accepted Answer

A specific microbe causes a specific disease.

Question 8

Which of the following is NOT a way in which microbes benefit human life?

Accepted Answer

Causing infectious diseases

Question 9

Which group of microorganisms is known for living in extremely salty environments and producing methane as a waste product?

Accepted Answer

Archaea

Question 10

Which of the following statements about viruses is TRUE?

Accepted Answer

Viruses are acellular and require host cells to replicate.

Question 11

Which scientist’s observations led to the beginning of cell theory, stating that all living things are composed of cells?

Accepted Answer

Robert Hooke

Question 12

Which of the following is a correct statement about the three domains used to classify organisms?

Accepted Answer

They are based on genetic and cellular differences.

Question 13

Which of the following is NOT a characteristic of protozoa?

Accepted Answer

Can carry out photosynthesis

Question 14

Which of the following is a correct description of normal microbiota?

Accepted Answer

Microbes that are normally present in the body

Question 15

Which of the following is a key experiment that disproved spontaneous generation?

Accepted Answer

Redi’s experiment with meat and maggots

Question 16

Which of the following is a function of biofilms?

Accepted Answer

Microbial communities attached to surfaces

Question 17

Which of the following is NOT a product of microbial fermentation?

Accepted Answer

Vaccines

Question 18

Which of the following statements about algae is TRUE?

Accepted Answer

Algae use light, water, and carbon dioxide for food production.

Question 19

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

Accepted Answer

A microbe must be present in all cases of disease and isolated in pure culture.

Question 20

Which of the following is NOT a eukaryotic microorganism?

Accepted Answer

Bacteria

Chapter 1: The Microbial World and You – Structured Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards