Cell Membranes 101

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Questions and Answers

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

  • Physical barrier
  • Selective permeability
  • Cell division (correct)
  • Cell-to-cell recognition

What is the main component of the plasma membrane?

  • Proteins
  • Cholesterol
  • Carbohydrates
  • Phospholipids (correct)

What is the purpose of the glycocalyx?

  • To form a physical barrier
  • To allow selective permeability
  • To provide cell-to-cell recognition (correct)
  • To enclose the cell

What is the term used to describe the constantly changing patterns of membrane proteins in the fluid membrane?

<p>Fluid mosaic (D)</p> Signup and view all the answers

What are the components of the plasma membrane acronym PPIGGC stand for?

<p>Phospholipids, peripheral proteins, integral proteins, glycoproteins, glycolipids, cholesterol (D)</p> Signup and view all the answers

Which of the following is NOT a component of the plasma membrane?

<p>Cytoplasm (A)</p> Signup and view all the answers

What is the main function of the plasma membrane?

<p>Selective permeability (D)</p> Signup and view all the answers

What is the term used to describe the surface sugars that form a coating known as glycocalyx?

<p>Glycoproteins (D)</p> Signup and view all the answers

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

<p>Energy production (C)</p> Signup and view all the answers

What is the purpose of the specialized membrane proteins floating through the fluid membrane?

<p>To result in constantly changing patterns (D)</p> Signup and view all the answers

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