Cell Biology: Vacuoles and their Functions
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Questions and Answers

What is the function of a vacuole in a cell?

  • It controls the cell's genetic information.
  • It generates energy for the cell.
  • It aids in cellular respiration.
  • It stores useful material and secretory products. (correct)
  • What percentage of a cell's volume can a vacuole occupy?

  • 90% (correct)
  • 50%
  • 70%
  • 100%
  • What is the membrane that bounds a vacuole called?

  • Cytoplasm
  • Nuclear membrane
  • Tonoplast (correct)
  • Cell wall
  • Which type of vacuole helps in excretion in amoeba?

    <p>Contractile vacuole</p> Signup and view all the answers

    Which of these is not a type of vacuole?

    <p>Storage vacuole</p> Signup and view all the answers

    Study Notes

    Vacuole

    • A space found within the cell membrane that stores useful materials and secretory products.
    • Occupies up to 90% of the cell's volume.
    • Surrounded by a semi-permeable membrane called the tonoplast.
    • Has a significantly higher rate of transportation compared to the cytoplasm.
    • In amoeba, the vacuole plays a crucial role in excretion.

    Types of Vacuole

    • Contractile Vacuole: a type of vacuole found in certain organisms.
    • Food Vacuole: a vacuole responsible for storing food particles.
    • Sap Vacuole: a type of vacuole found in plant cells, containing cell sap.

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    Description

    This quiz covers the basics of vacuoles, including their structure, functions, and types. Learn about the role of vacuoles in cellular processes and their characteristics.

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