Cell Membrane Structure Quiz
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Questions and Answers

What is the main function of a central vacuole in a plant cell?

  • Forming a solution for biochemical reactions
  • Maintaining turgor pressure (correct)
  • Regulating the movement of ions
  • Containing toxic substances

    • What differentiates rough endoplasmic reticulum (RER) from smooth endoplasmic reticulum (SER)?

  • Presence of ribosomes on the membrane (correct)
  • Function in ion regulation
  • Connection with the nuclear envelope
  • Tubule network structure

    • Which organelle is responsible for metabolizing macromolecules into smaller parts in a cell?

  • Mitochondria
  • Endoplasmic reticulum
  • Central vacuole
  • Cytoplasm (correct)

    • What is the primary role of cytoplasm in a cell?

    <p>Metabolizing macromolecules</p> Signup and view all the answers

    What does the tonoplast in a plant cell's central vacuole mainly regulate?

    <p>Movement of ions around the cell</p> Signup and view all the answers

    Which of the following statements about the cell membrane is incorrect?

    <p>It is composed of a double layer of phospholipids sandwiched between two layers of proteins.</p> Signup and view all the answers

    What is the primary function of the cell membrane?

    <p>To separate the cell contents from the external environment and control selective permeability.</p> Signup and view all the answers

    Which of the following statements about the cytoplasm is incorrect?

    <p>It is separated from the vacuole in plant cells by the endoplast membrane.</p> Signup and view all the answers

    What is the function of the endoplasmic reticulum in relation to the cell membrane?

    <p>It is connected to the cell membrane, forming a continuous channel system.</p> Signup and view all the answers

    In plant cells, where is the plasma membrane typically located?

    <p>It is usually lying under the cell wall.</p> Signup and view all the answers

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