Biology: Classification and Domains
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Questions and Answers

What is the main goal of taxonomy?

  • To classify organisms based on their environment
  • To study the structure of cells
  • To establish relationships between organisms (correct)
  • To develop diagnostic techniques
  • How are scientific names typically written?

  • With both genus and species names lowercased
  • With both genus and species names capitalized
  • With the genus name italicized and the species name bolded
  • With the genus name capitalized and the species name lowercased (correct)
  • What characteristic distinguishes Eukarya from Prokarya?

  • The ability to live in extreme environments
  • The presence of peptidoglycan in their cell walls
  • The presence of antibodies in their cells
  • The presence of a nucleus and organelles in their cells (correct)
  • What is the primary function of ELISA?

    <p>To detect and quantify substances such as proteins and hormones</p> Signup and view all the answers

    Which domain is characterized by the presence of unicellular prokaryotes with peptidoglycan in their cell walls?

    <p>Bacteria</p> Signup and view all the answers

    What is the primary characteristic that distinguishes Eukarya from other domains?

    <p>The presence of a nucleus</p> Signup and view all the answers

    What type of organisms are found in the Archaea domain?

    <p>Prokaryotes lacking peptidoglycan</p> Signup and view all the answers

    Which of the following is an example of an organism that belongs to the Eukarya domain?

    <p>Fungi</p> Signup and view all the answers

    What characterizes the cell walls of Bacteria?

    <p>The presence of peptidoglycan</p> Signup and view all the answers

    Which domain includes organisms such as plants and animals?

    <p>Eukarya</p> Signup and view all the answers

    Study Notes

    Taxonomy and Classification

    • Taxonomy is the science of classifying organisms to establish their relationships.

    Writing Scientific Names

    • Use binomial nomenclature to write scientific names.
    • Genus name is capitalized and species name is lowercased, both italicized (e.g., Escherichia coli).

    Three Domains of Life

    Eukarya

    • Organisms with cells containing a nucleus and organelles.
    • Examples: plants, animals, fungi.

    Prokarya

    Bacteria

    • Unicellular prokaryotes with peptidoglycan in their cell walls.

    Archaea

    • Prokaryotes lacking peptidoglycan.
    • Often living in extreme environments.

    Diagnostic Techniques

    ELISA (Enzyme-Linked Immunosorbent Assay)

    • Used to detect and quantify substances such as proteins, peptides, antibodies, and hormones.

    PCR (Polymerase Chain Reaction)

    • Amplifies DNA sequences to make them easier to study.

    Western Blot

    • Protein analysis method that detects specific proteins in a sample using antibody binding.

    Taxonomy

    • Taxonomy is the science of classifying organisms to establish their relationships.

    Three Domains of Life

    • Eukarya: Organisms with cells containing a nucleus and organelles, including:
    • Plants
    • Animals
    • Fungi

    Prokarya

    • Prokarya consists of two sub-domains:
    • Bacteria: Unicellular prokaryotes with peptidoglycan in their cell walls.
    • Archaea: Prokaryotes lacking peptidoglycan, often living in extreme environments.

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    Description

    This quiz covers the basics of taxonomy, scientific naming conventions, and the three domains of life: Eukarya, Prokarya, and Archaea.

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