Cell Membrane Structure and Components Quiz
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Questions and Answers

What is the function of the cell membrane?

  • Coordinates cell division
  • Stores excess water within the cell
  • Breaks down substances for energy production
  • Protects, identifies, regulates substance passage, communicates, and anchors cytoskeleton (correct)
  • Which structure improves stability and reduces fluidity in animal cell membranes?

  • Carbohydrates
  • Cholesterol (correct)
  • Phospholipids
  • Proteins
  • Which process involves the movement of macromolecules through vesicles?

  • Osmosis
  • Exocytosis
  • Facilitated diffusion
  • Endocytosis (correct)
  • What is the movement of particles from higher to lower concentration called?

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

    Which structure forms a bilayer with polar heads outward and nonpolar tails inward?

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

    What type of transport is energy-demanding and transfers substances from lower to higher concentration?

    <p>Active transport</p> Signup and view all the answers

    What are the finger-like extensions on the cell membrane referred to as?

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

    What is the process of vesicles releasing contents to the outside called?

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

    What type of molecules do vesicles engulf in pinocytosis?

    <p>Small particles</p> Signup and view all the answers

    Which process involves the movement of solid particles through vesicles?

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

    What type of molecules do vesicles engulf in phagocytosis?

    <p>Solid particles</p> Signup and view all the answers

    Which type of transport assists in the movement of macromolecules through vesicles?

    <p>Active transport</p> Signup and view all the answers

    What is the net movement of particles from higher to lower concentration called?

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

    What are the finger-like extensions on the cell membrane referred to as?

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

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