Cell Biology Quiz: Plasma Membrane & Organelles
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Questions and Answers

What functions do glycoproteins serve in the plasma membrane?

  • Identify cell type (correct)
  • Provide mechanical support
  • Catalyze biochemical reactions
  • Transport molecules across the membrane
  • Which of the following organelles is primarily involved in the synthesis of ribosomes?

  • Nucleolus (correct)
  • Endoplasmic Reticulum
  • Golgi Apparatus
  • Nucleus
  • Which of the following statements is true about the structure of the plasma membrane?

  • It is rigid and does not allow movement.
  • It is composed only of proteins.
  • It consists of a double layer of phospholipids and proteins. (correct)
  • It has a single membrane structure.
  • What is the primary role of the cytoskeleton within a cell?

    <p>To provide mechanical support and aid in movement</p> Signup and view all the answers

    Which type of endoplasmic reticulum is primarily responsible for protein synthesis?

    <p>Rough endoplasmic reticulum</p> Signup and view all the answers

    What type of movement across the plasma membrane do small nonpolar molecules like oxygen utilize?

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

    What structure serves to anchor organelles within the cytoplasm?

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

    Which statement accurately describes the fluid mosaic model of the plasma membrane?

    <p>The membrane is dynamic with proteins embedded in the lipid bilayer.</p> Signup and view all the answers

    What role do centrioles play in cellular function?

    <p>Cell division</p> Signup and view all the answers

    What is a primary characteristic of the nucleolus?

    <p>Producing and assembling ribosomal RNA</p> Signup and view all the answers

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