Exploring Eukaryotic Cell Structure Quiz
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Questions and Answers

What is a key characteristic of eukaryotic cells?

  • Lack of cytoplasm
  • Presence of a cell wall
  • Absence of genetic material
  • Possession of a membrane-bound nucleus (correct)
  • What is the function of the nucleolus in eukaryotic cells?

  • Synthesizes ATP
  • Facilitates ribosome biogenesis (correct)
  • Regulates cellular metabolism
  • Stores genetic material
  • What is the approximate general size range of eukaryotic cells?

  • 10-50 millimeters
  • 5-100 micrometers (correct)
  • 100-500 nanometers
  • 1-5 centimeters
  • What is the composition of eukaryotic chromosomes?

    <p>Complex of DNA and proteins</p> Signup and view all the answers

    What is the role of heterochromatin in eukaryotic cells?

    <p>Not expressed</p> Signup and view all the answers

    How are eukaryotic chromosomes organized within the nucleus?

    <p>They must be condensed to fit within the nucleus</p> Signup and view all the answers

    What is the function of the nuclear envelope in eukaryotic cells?

    <p>Composed of 2 phospholipid bilayers</p> Signup and view all the answers

    What is the role of the cytoskeleton in eukaryotic cells?

    <p>Support and maintenance of cellular structure</p> Signup and view all the answers

    What is the function of the endomembrane system in eukaryotic cells?

    <p>Compartmentalizes many cellular functions within organelles</p> Signup and view all the answers

    What is the primary function of the plasma membrane in eukaryotic cells?

    <p>Regulates the passage of substances into and out of the cell</p> Signup and view all the answers

    What is the primary role of the DNA in eukaryotic cells?

    <p>Stores genetic material and codes for proteins</p> Signup and view all the answers

    What is the function of rough endoplasmic reticulum (RER)?

    <p>Synthesis of proteins to be secreted</p> Signup and view all the answers

    What is the approximate length of DNA in a eukaryotic cell when stretched out?

    <p>About 2 meters long</p> Signup and view all the answers

    What is the composition of the extracellular matrix (ECM)?

    <p>Glycoproteins and fibrous proteins such as collagen</p> Signup and view all the answers

    What is the function of lysosomes?

    <p>Break down macromolecules with digestive enzymes</p> Signup and view all the answers

    What is the role of condensin in cellular organization?

    <p>Aids the scaffold of proteins in holding radial loops in place</p> Signup and view all the answers

    What is the role of mitochondria in eukaryotic cells?

    <p>Contain oxidative metabolism enzymes for transferring energy to ATP</p> Signup and view all the answers

    What is the structure that surrounds animal cells and is composed of glycoproteins and fibrous proteins?

    <p>Extracellular matrix (ECM)</p> Signup and view all the answers

    What is the function of smooth endoplasmic reticulum (SER)?

    <p>Synthesis of membrane lipids</p> Signup and view all the answers

    What is the role of nucleosomes in DNA organization?

    <p>DNA wrapped around a core of 8 histone proteins</p> Signup and view all the answers

    What is the function of the Golgi apparatus?

    <p>Packaging and distribution of materials to different parts of the cell</p> Signup and view all the answers

    What is the role of the cytoskeleton in eukaryotic cells?

    <p>Supports the shape of the cell and keeps organelles in fixed locations</p> Signup and view all the answers

    What is the structure that contains oxidative enzymes and catalase, and is not part of the endomembrane system?

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

    What is the network of protein fibers found in all eukaryotic cells that supports the shape of the cell and helps move materials within the cell?

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

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