Microbial Classification and Cell Structures Quiz

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35 Questions

What is the classification of Escherichia coli?

Prokaryotic species

What is the primary reason viruses are not considered living organisms?

Lack of anabolic machinery

What is the primary basis for the more recent classification of bacteria?

DNA, RNA, and protein sequences

Which group of bacteria stains violet in the Gram staining method?

Gram +

What is the primary distinguishing characteristic of a clone?

Cells originated from a single cell

What is the primary requirement for viruses to reproduce?

Host cells

What is the primary basis for the classification of viruses?

Genome

What is the primary characteristic of organisms classified as Archaea?

Lack of cell wall

What is the primary function of Bergey’s Manual?

Identifying and classifying microorganisms

What is the primary characteristic of bacteria in the Gram - group?

Destain and counterstain pink or reddish color

What is the main difference between prokaryotic and eukaryotic organisms?

Presence or absence of nucleus and membrane-bound organelles

What are viruses composed of?

Nucleic acid and protein

What is taxonomy?

The science that studies organisms to arrange them into groups

What are the three separate but interrelated areas of taxonomy?

Identification, classification, nomenclature

What did Carl Woese propose in 1978 based on his classification study?

Three domains of life

What is binomial nomenclature?

A system of naming organisms using two Latinized names

What are the two components of an organism's name in binomial nomenclature?

Genus and species

What is the main characteristic used to classify organisms into the five kingdoms?

Morphology, metabolism, and molecular techniques

What is the main difference between prokaryotic and eukaryotic cell structures?

Presence or absence of nucleus and membrane-bound organelles

What is the main characteristic of viruses?

Acellular and parasitic

Escherichia coli is commonly known as E. coli because it is a _________ species

prokaryotic

Classification of Bacteria in Bergey’s Manual is primarily based on _________, staining, metabolism, biochemistry, and serology

morphology

Viruses are not considered living because they lack _________ machinery and require host cells to reproduce

anabolic

The _________ division of bacteria lacks a cell wall and is now called 'Archaea'

organisms

Bergey’s Manual provides a reference for identifying and classifying microorganisms based on their _________, RNA, and protein sequences

DNA

Taxonomic Hierarchy King Phillip Came Over For Grasshopper Soup is a mnemonic for remembering the _________ classification of organisms

taxonomic

Bacteria that stain violet in the Gram staining method belong to the _________ group

Gram +

The lack of 'peptidoglycan' in the cell wall is a characteristic of _________

organisms

Viruses have either RNA or DNA as their _________

genome

The primary basis for the more recent classification of bacteria is their DNA, _________, and protein sequences

RNA

Microbial Classification is the science that studies organisms to arrange them into groups, or taxa. Three separate but interrelated areas of taxonomy are: ______

Identification, Process of characterizing in order to group, Classification, Arranging organisms into similar or related groups, Nomenclature, System of assigning names

1978 Carl Woese proposed three domains based on: Cell wall, Membrane lipids, RNA sequence, Protein synthesis, Antibiotic sensitivity. Three Domains Naming Microorganisms Binomial nomenclature Used worldwide A system of naming organisms first proposed in the 1700s by Swedish scientist Carolus Linnaeus. Each organism is given two Latinized names: Genus – Capitalized Species - lowercase Both italicized or underlined ______

Staphylococcus aureus

Microbial Classification Five Kingdoms - based on: Morphology, Metabolism, Molecular Techniques. Classification History Classification History Five Kingdoms - based on: Morphology, Metabolism, Molecular Techniques. Classification History 1978 Carl Woese proposed three domains based on: Cell wall, Membrane lipids, RNA sequence, Protein synthesis, Antibiotic sensitivity. Three Domains Naming Microorganisms Binomial nomenclature Used worldwide A system of naming organisms first proposed in the 1700s by Swedish scientist Carolus Linnaeus. Each organism is given two Latinized names: Genus – Capitalized Species - lowercase Both italicized or underlined Staphylococcus aureus (S. ______

aureus

Microbial Classification Classification History Five Kingdoms - based on: Morphology, Metabolism, Molecular Techniques. Classification History 1978 Carl Woese proposed three domains based on: Cell wall, Membrane lipids, RNA sequence, Protein synthesis, Antibiotic sensitivity. Three Domains Naming Microorganisms Binomial nomenclature Used worldwide A system of naming organisms first proposed in the 1700s by Swedish scientist Carolus Linnaeus. Each organism is given two Latinized names: Genus – Capitalized Species - lowercase Both italicized or underlined Staphylococcus aureus (S. ______

aureus

Microbial Classification Principles of Taxonomy Taxonomy: is the science that studies organisms to arrange them into groups, or taxa Three separate but interrelated areas: Identification Process of characterizing in order to group Classification Arranging organisms into similar or related groups Nomenclature System of assigning names Classification History Classification History Five Kingdoms - based on: Morphology - Metabolism - Molecular Techniques Classification History 1978 Carl Woese proposed three domains based on: Cell wall Membrane lipids RNA sequence Protein synthesis Antibiotic sensitivity Three Domains Naming Microorganisms Binomial nomenclature Used worldwide A system of naming organisms first proposed in the 1700s by Swedish scientist Carolus Linnaeus. Each organism is given two Latinized names: Genus – Capitalized Species - lowercase Both italicized or underlined Staphylococcus aureus (S. ______

aureus

Test your knowledge of microbial classification and basic cell structures with this quiz. Explore the origins of microorganisms, from prokaryotes to eukaryotes, and learn about the unique characteristics of viruses. Understand how classification provides meaningful groupings of organisms and its significance in biology and NASA research.

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