Cell Membrane Structure and Function Quiz
15 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main function of the cell membrane?

  • Facilitating cell movement and adhesion
  • Creating a flexible, semi-permeable barrier around the cell (correct)
  • Maintaining stable internal conditions
  • Regulating cell division

    • How is the structure of the cell membrane best described?

  • Fluid mosaic model (correct)
  • Rigid lattice model
  • Dynamic matrix model
  • Static layer model

    • What is the term for the regulation of what enters and leaves the cell?

  • Passive diffusion
  • Active transport
  • Osmosis
  • Selective permeability (correct)

    • What is the basic structure of the cell membrane called?

    <p>Phospholipid bilayer</p> Signup and view all the answers

    What is the role of cholesterol in the cell membrane?

    <p>Providing stability to the membrane</p> Signup and view all the answers

    Apart from creating a barrier, what is another function of the cell membrane?

    <p>Regulating transport of materials</p> Signup and view all the answers

    What is the term for the ability of membrane components to drift laterally in the bilayer?

    <p>Lateral fluidity</p> Signup and view all the answers

    What is the main function of the cell membrane?

    <p>Act as a physical barrier and regulate what enters and leaves the cell</p> Signup and view all the answers

    What is the role of cholesterol in the cell membrane?

    <p>Helps maintain flexibility and fluidity</p> Signup and view all the answers

    What do integral proteins do in the cell membrane?

    <p>Span the cell membrane and have various functions including transportation</p> Signup and view all the answers

    What is the function of transport proteins in the cell membrane?

    <p>Act as pumps or channels for material movement</p> Signup and view all the answers

    What is the significance of carbohydrates on the outside of the cell membrane?

    <p>Help in cell recognition and adhesion</p> Signup and view all the answers

    What does the fluid mosaic model describe the cell membrane as?

    <p>A mosaic of lipids, proteins, and carbohydrates</p> Signup and view all the answers

    What is the main characteristic of the cell membrane's permeability?

    <p>Selectively permeable, allowing only certain molecules to pass through</p> Signup and view all the answers

    What is the role of phospholipids in the cell membrane?

    <p>Form a bilayer with hydrophobic tails and hydrophilic heads</p> Signup and view all the answers

    Study Notes

    Cell Membrane Structure and Function

    • The fluid mosaic model describes the cell membrane as a mosaic of lipids, proteins, and carbohydrates
    • Cholesterol in the membrane helps maintain flexibility and fluidity
    • Phospholipids, with hydrophobic tails and hydrophilic heads, form a bilayer in the membrane
    • Integral proteins span the cell membrane, while peripheral proteins are located on the outside
    • Proteins in the cell membrane have functions including cell signaling, anchoring cells, transportation, and enzymatic reactions
    • Transport proteins in the membrane can act as pumps or channels for material movement
    • Carbohydrates on the outside of the cell membrane help in cell recognition and adhesion
    • The main function of the cell membrane is to act as a physical barrier and regulate what enters and leaves the cell
    • The cell membrane is selectively permeable, allowing only certain molecules to pass through
    • It helps in glucose transport through regulated transporter proteins
    • The cell membrane is crucial for cell signaling, transducing chemical signals, and triggering changes inside the cell
    • Integral proteins in the membrane are important for cell movement and adhesion to the extracellular matrix and other cells

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of cell membrane structure and function with this quiz. Learn about the fluid mosaic model, the role of cholesterol, the functions of integral and peripheral proteins, and the selective permeability of the membrane. Explore how the membrane regulates material movement, aids in cell recognition, and facilitates cell signaling.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser