Active Transport Mechanisms in Biology
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Questions and Answers

What is another term often used to refer to active-transport transporters?

  • Receptors
  • Pumps (correct)
  • Carriers
  • Channels
  • Which type of transporters exhibit specificity and saturation similar to facilitated-diffusion transporters?

  • Secondary active transporters (correct)
  • Antiport system transporters
  • Symport system transporters
  • Primary active transporters
  • In active transport, the flux via the transporter is maximal when:

  • The transporter is non-specific
  • The transporter binding sites are empty
  • The transporter is saturated with inhibitors
  • All transporter binding sites are occupied (correct)
  • Which type of transporter moves substances uphill in a manner similar to pumps?

    <p>Secondary active transporters</p> Signup and view all the answers

    Which transport system moves substances against their concentration gradient?

    <p>Primary active transport system</p> Signup and view all the answers

    Which type of epithelium lines the glands of the body?

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

    How is epithelial tissue classified based on the number of cell layers?

    <p>Simple and stratified</p> Signup and view all the answers

    Which shape of cells characterizes simple columnar epithelium?

    <p>Tall, column-like cells</p> Signup and view all the answers

    What is the main function of simple cuboidal epithelium?

    <p>Absorption and secretion</p> Signup and view all the answers

    Which type of epithelium is best suited for rapid diffusion due to its thin nature?

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

    In which classification of epithelial tissue do all cells make contact with the basement membrane?

    <p>Pseudostratified columnar epithelium</p> Signup and view all the answers

    Which shape of cells characterizes simple cuboidal epithelium?

    <p>Cube-shaped cells</p> Signup and view all the answers

    What is a distinguishing feature of simple columnar epithelium compared to simple cuboidal epithelium?

    <p>Presence of cilia on apical surfaces</p> Signup and view all the answers

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