Senior High School Gen Bio1 Q1: Structural Components of Cell Membrane
16 Questions
1 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

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

  • Ensuring that each cell can move
  • Providing rigid support and protection to the cell (correct)
  • Regulating what enters and leaves the cell
  • Fighting bacteria and viruses that enter the cell

    • What is the term used to describe the nature of the phospholipid bilayer in the cell membrane?

  • Endocytic
  • Isotonic
  • Amphipathic (correct)
  • Hydrophilic

    • Which of the following is a major constituent of the cell membrane?

  • Phospholipids (correct)
  • Ribosomes
  • Nucleus
  • Mitochondria

    • What feature of the cell membrane allows it to provide fluidity to the cell?

    <p>Presence of cholesterol molecules</p> Signup and view all the answers

    Which statement best describes the role of the cell membrane?

    <p>It acts as a barrier between the cell and its environment</p> Signup and view all the answers

    What is the main difference between the functions of the cell membrane and the cell wall in plant cells?

    <p>The cell membrane regulates water balance, while the cell wall maintains cell shape</p> Signup and view all the answers

    What does amphipathic mean?

    <p>Having both hydrophobic and hydrophilic parts</p> Signup and view all the answers

    What type of cell membrane protein regulates the movement of hydrophilic molecules through the membrane?

    <p>Transport protein</p> Signup and view all the answers

    What molecules play an important role in controlling cell membrane fluidity?

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

    What is a fluid mosaic model?

    <p>Organization of the cell membrane</p> Signup and view all the answers

    Which biomolecule is not found in the cell membrane?

    <p>nucleic acid</p> Signup and view all the answers

    Which of the following is not a characteristic of the cell membrane?

    <p>Made up of lipid layer</p> Signup and view all the answers

    The proportion of lipids and proteins in the cell membrane is almost always 50:50 or 1:1. This statement is

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

    The molecules that play an important role in controlling cell membrane fluidity is _________.

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

    What type of biomolecule is attached to the external side of the membrane protein?

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

    All of the following statement about cell membrane fluidity are correct EXCEPT.

    <p>The fluidity of the cell membrane helps maintains its role as a rigid barrier between the inside and outside of the cell environment.</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser