Biology Chapter: Prokaryotes and Eukaryotes
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Questions and Answers

What defines a prokaryote?

  • No membrane-bound organelles (correct)
  • Is multicellular
  • Contains DNA (correct)
  • Has a nucleus
  • What defines a eukaryote?

  • Has no nucleus
  • Contains DNA (correct)
  • Is unicellular
  • Has membrane-bound organelles (correct)
  • What does unicellular mean?

    One cell

    What does multicellular mean?

    <p>Made of many cells</p> Signup and view all the answers

    What does autotrophic mean?

    <p>Make their own food</p> Signup and view all the answers

    What does heterotrophic mean?

    <p>Cannot make its own food</p> Signup and view all the answers

    Which of the following best describes bacteria?

    <p>Unicellular prokaryotes</p> Signup and view all the answers

    What distinguishes archaebacteria?

    <p>They are prokaryotes</p> Signup and view all the answers

    What is a protist?

    <p>Usually unicellular but can be multicellular</p> Signup and view all the answers

    Which characteristics describe fungi?

    <p>Usually unicellular but can be multicellular</p> Signup and view all the answers

    What characteristics define plantae?

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

    What are the key features of the Animalia kingdom?

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

    Match the following taxonomic levels with their order:

    <p>Domain = Broadest category Kingdom = Second level Phylum = Third level Class = Fourth level Order = Fifth level Family = Sixth level Genus = Seventh level Species = Most specific level</p> Signup and view all the answers

    What is a scientific name?

    <p>An organism's Genus and Species</p> Signup and view all the answers

    What is the benefit of having scientific names?

    <p>They are universal and understood by all scientists regardless of language/region.</p> Signup and view all the answers

    Why might the classification system change?

    <p>As scientists learn more about DNA and cell structure evidence.</p> Signup and view all the answers

    Study Notes

    Prokaryotes and Eukaryotes

    • Prokaryotes lack membrane-bound organelles and a nucleus, containing only DNA.
    • Eukaryotes possess membrane-bound organelles, a nucleus, and DNA.

    Cellular Organization

    • Unicellular organisms consist of a single cell.
    • Multicellular organisms are composed of multiple cells.

    Nutritional Modes

    • Autotrophic organisms can synthesize their own food.
    • Heterotrophic organisms are unable to produce their own food.

    Types of Organisms

    • Bacteria are unicellular and classified as prokaryotes.
    • Archaebacteria are also prokaryotes, often intolerant to oxygen, and include many extremophiles.
    • Protists are primarily eukaryotic; most are unicellular, but some can be multicellular.
    • Fungi are heterotrophic, often unicellular or multicellular, and generally possess cell walls.
    • Plantae are autotrophic and predominantly multicellular organisms.
    • Animalia primarily consists of multicellular, heterotrophic organisms.

    Taxonomic Classification

    • Taxonomic levels, arranged from broad to specific, include Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

    Scientific Naming

    • A scientific name combines an organism's Genus and Species, like Panthera Leo for lions.
    • Scientific names provide a universal language for scientists, eliminating regional language barriers.

    Classification System Evolution

    • The classification system adapts based on advancements in DNA and cell structure knowledge.
    • Discoveries of new organisms and ongoing evolutionary changes contribute to potential updates in classification.

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    Description

    This quiz explores the fundamental differences between prokaryotes and eukaryotes, including cellular organization and nutritional modes. It also delves into the types of organisms within these categories and their taxonomic classification. Test your understanding of cell structure and function across various life forms.

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