Three Domain System Overview

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What is the purpose of classifying living things?

To increase their population

To quickly identify microbes (correct)

To make them look organized

To change their characteristics

What is taxonomy?

Study of weather patterns

Science of classification (correct)

Classification of animals

Study of plants only

What does binomial nomenclature consist of?

Genus name followed by a random name

A single name for each organism

Species name followed by genus name

Genus name followed by species name (correct)

What do taxonomists study?

Classification of living organisms Signup and view all the answers

Which taxon shows the evolutionary relationship between organisms in a group?

Phylogeny Signup and view all the answers

What are the two highest (most inclusive) taxa in biology?

Domain and Kingdom Signup and view all the answers

Which is one of the three Domains of living organisms based on the Three Domain System?

Domain Bacteria Signup and view all the answers

What distinguishes Eukaryotic species from each other?

Genetic differences Signup and view all the answers

How are clones of bacterial cells different from subspecies?

Clones are genetically identical, while subspecies are not. Signup and view all the answers

How are viruses classified?

By Family, Genus, and Species Signup and view all the answers

What chemical composition is used in Gram staining to differentiate bacteria?

Peptidoglycan in the cell wall Signup and view all the answers

What type of parasite is a virus?

Obligate intracellular parasite Signup and view all the answers

What suffix typically denotes the Family name of a virus?

-viridae Signup and view all the answers

How do subspecies of microbes differ from each other?

Through genetic mutations over time Signup and view all the answers

Which kingdom includes organisms that are mainly unicellular and prokaryotic?

Kingdom Monera Signup and view all the answers

Which kingdom consists of the simplest eukaryotic organisms, mostly unicellular?

Kingdom Protista Signup and view all the answers

Which kingdom is characterized by organisms that are multicellular, autotrophic, and possess a cell wall?

Kingdom Plantae Signup and view all the answers

Which type of organisms rely on consuming other organisms for food?

Heterotrophs Signup and view all the answers

Which is the lowest taxon in the classification system?

Species Signup and view all the answers

Which taxonomic level is the highest for classification purposes?

Domain Signup and view all the answers

What distinguishes Domain Archaea from Domain Bacteria?

Both a and b Signup and view all the answers

In the Three Domain System, how many Domains do prokaryotic cells belong to?

Two Signup and view all the answers

What is the common ancestor cell where all cells originated from called?

LUCA Signup and view all the answers

Which Domain contains members of the 4 Kingdoms other than Monera?

Domain Eukarya Signup and view all the answers

How many cell types exist based on the information provided?

Three Signup and view all the answers

What is the distinguishing feature of Domain Archaea's cell walls compared to Domain Bacteria?

'Unusual' cell walls with no peptidoglycan Signup and view all the answers

What is the purpose of Serological testing in microbiology?

To differentiate between pathogenic and non-pathogenic bacteria Signup and view all the answers

What is the main function of the Bergey’s Manual of Determinative Bacteriology?

To identify unknown bacteria systematically Signup and view all the answers

What is the primary purpose of PCR (Polymerase Chain Reaction) in microbiology?

To amplify specific DNA segments Signup and view all the answers

Which method helps determine if an unknown bacterium can breakdown glucose?

Biochemical tests Signup and view all the answers

What distinguishes Serological testing from PCR in microbiology?

Serological testing analyzes DNA sequences to differentiate strains within species Signup and view all the answers

Which method focuses on making many copies of a specific DNA segment?

PCR (Polymerase Chain Reaction) Signup and view all the answers

How does Serological testing aid in microbiology classification?

By analyzing the DNA sequences to differentiate among strains within species Signup and view all the answers