Ch. 1 - Introduction to Microbiology

Norman-McKay- Microbiology: Basic and Clinical Principles 2nd Edition

Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619Not the one you use?Change textbook

Norman-McKay 2nd Edition

Ch. 1 - Introduction to Microbiology

Problem 9

Chapter 1, Problem 9

Fill in the blanks: In taxonomy, the broadest groupings are called _________, which are further subdivided into six different _. The most specific or narrowest grouping is _, which is the _________ name in the binomial nomenclature system.

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Understand that taxonomy is the science of classifying living organisms into hierarchical groups based on shared characteristics.

Identify that the broadest groupings in taxonomy are called 'domains', which represent the highest level of classification.

Recognize that these domains are further subdivided into six different 'kingdoms', which group organisms based on fundamental traits.

Know that the most specific or narrowest grouping in taxonomy is the 'species', which defines a single type of organism.

Recall that in the binomial nomenclature system, the species name is the second part of the two-part scientific name, following the genus name.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Taxonomic Hierarchy

Taxonomy organizes living organisms into a hierarchical system of groups based on shared characteristics. The broadest category is the domain, which encompasses the largest diversity of organisms, and this hierarchy narrows down to species, the most specific grouping.

Domains and Kingdoms

The highest taxonomic rank is the domain, which is divided into three main domains: Bacteria, Archaea, and Eukarya. These domains are further subdivided into kingdoms, traditionally six in number, grouping organisms by fundamental traits such as cell type and metabolism.

Binomial Nomenclature

Binomial nomenclature is the system of naming species using two terms: the genus name followed by the species name. The species is the most specific taxonomic unit, and its name uniquely identifies an organism within the genus.

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Scientific Naming of Organisms

Related Practice

Textbook Question

Identify the following statements as observations or conclusions.

a. The solution turned red.

b. The bacterium is a rod shape.

c. The cell died due to lack of nutrients.

d. The bacterium is E. coli.

e. The cell is Gram-positive.

f. The bacterium is a pathogen.

g. There are small green structures present upon performing the endospore stain.

h. The solution remained clear after 10 hours of incubation.

i. Fermentation occurred.

j. Life comes from life.

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Textbook Question

Label and describe the function of each indicated part of the compound light microscope.

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Textbook Question

A(n) ___________________ is a genetic variant of the same species.

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Textbook Question

Assume that you isolated a unicellular, non-nucleated cell from a deep-sea vent. Select the statement that is least likely regarding the cell you found.

a. The cell is a prokaryote.

b. The cell is a fungus or yeast.

c. The cell is an archaea.

d. The cell is not a pathogen.

e. The cell is in Domain Archaea.

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Textbook Question

How is an opportunistic pathogen different from a pathogen?

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Textbook Question

Fill in the blanks: Bacteria are ___________________ cells in the domain ___________________. In contrast, the domain ___________________ includes unicellular and multicellular organisms that are made of ___________________ cells, or cells that have a nucleus and membrane-bound organelles.

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Fill in the blanks: In taxonomy, the broadest groupings are called ___________________, which are further subdivided into six different ___________________. The most specific or narrowest grouping is ___________________, which is the ___________________ name in the binomial nomenclature system.

Verified video answer for a similar problem:

Key Concepts

Taxonomic Hierarchy

Domains and Kingdoms

Binomial Nomenclature

Fill in the blanks: In taxonomy, the broadest groupings are called _________, which are further subdivided into six different _. The most specific or narrowest grouping is _, which is the _________ name in the binomial nomenclature system.