Biology: Unicellular and Multicellular Organisms
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Questions and Answers

In unicellular organisms, which cell carries out all functions like digestion, respiration, and reproduction?

  • Reproductive cell
  • Respiratory cell
  • A single cell (correct)
  • Digestive cell
  • What is the basic unit of structure and function in multicellular animals?

  • Organs
  • Organ systems
  • Cells (correct)
  • Tissues
  • Which term refers to a group of similar cells along with intercellular substances performing a specific function?

  • Organ system
  • Cell group
  • Tissue (correct)
  • Organ
  • What is the correct sequence of organization in multicellular animals from basic to more complex?

    <p>Cells, tissues, organs, organ systems</p> Signup and view all the answers

    How many basic types of tissues are present in complex animals?

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

    What is the term used to describe the common function performed by two or more organs through physical and/or chemical interaction?

    <p>Organ system</p> Signup and view all the answers

    Where are microvilli commonly found in the body?

    <p>Ducts of glands and tubular parts of nephrons</p> Signup and view all the answers

    What is the main function of the epithelium in the proximal convoluted tubule of nephrons?

    <p>Secretion and absorption</p> Signup and view all the answers

    What type of cells make up the columnar epithelium?

    <p>Tall and slender cells</p> Signup and view all the answers

    What is the role of ciliated epithelium in the body?

    <p>Move particles or mucus in a specific direction</p> Signup and view all the answers

    Where can ciliated epithelium mainly be found in the body?

    <p>Inner surface of bronchioles and fallopian tubes</p> Signup and view all the answers

    What is the defining characteristic of epithelial tissue?

    <p>Compact packing of cells</p> Signup and view all the answers

    Where would you expect to find squamous epithelium in the human body based on its function?

    <p>In the walls of blood vessels</p> Signup and view all the answers

    Which type of epithelial tissue functions as a lining for body cavities and tubes?

    <p>Simple squamous epithelium</p> Signup and view all the answers

    What is the structural difference between simple and compound epithelium?

    <p>Two or more cell layers in compound epithelium</p> Signup and view all the answers

    In what way do cuboidal cells differ from squamous cells structurally?

    <p>Cube-like shape compared to flattened shape</p> Signup and view all the answers

    Which type of epithelial tissue provides a protective function similar to that of the skin?

    <p>Compound squamous epithelium</p> Signup and view all the answers

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