Cell Biology Chapter 3
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What is the primary role of the cell membrane in maintaining the internal environment of the cell?

  • It synthesizes proteins necessary for cell function.
  • It serves as a storage area for genetic material.
  • It regulates the passage of materials into and out of the cell. (correct)
  • It acts as a rigid structure to support the cell.

    • Which function of the cell membrane is crucial for maintaining homeostasis within the cell?

  • Providing structural support to the cell.
  • Isolating the cell from its surroundings.
  • Maintaining the ion concentration within the cytoplasm. (correct)
  • Facilitating energy production in the cell.

    • How does the cell membrane facilitate interaction with its environment?

  • By exclusively transporting nutrients into the cell.
  • By blocking all external signals.
  • By allowing specific recognition and regulatory functions. (correct)
  • Through the formation of rigid barriers.

    • In what way does the cell membrane contribute to cell communication?

    <p>Through structures that enable signal transduction.</p> Signup and view all the answers

    Which of the following is NOT a function of the cell membrane?

    <p>Providing energy for cellular processes.</p> Signup and view all the answers

    Which of the following organelles is classified as non-membranous?

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

    What is the main characteristic of membranous organelles?

    <p>They are limited by a membrane.</p> Signup and view all the answers

    Which of the following is NOT a type of membranous organelle?

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

    Which type of organelles includes microfilaments and microtubules?

    <p>Non-membranous organelles</p> Signup and view all the answers

    What function do lysosomes primarily serve in a cell?

    <p>Digestion of waste materials</p> Signup and view all the answers

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