Cellular Membranes and Transport
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Questions and Answers

Which lipid is the most abundant in the plasma membrane?

  • Steroids
  • Phospholipids (correct)
  • Glycolipids
  • Cholesterol

According to the fluid mosaic model, a membrane is a fluid structure with a 'mosaic' of various _______ embedded in it.

  • Carbohydrates
  • Nucleic acids
  • Proteins (correct)
  • Lipids

What is the function of the plasma membrane?

  • To store genetic information
  • To produce energy
  • To separate the living cell from its surroundings (correct)
  • To control the movement of water

Which term describes the property of the plasma membrane that allows some substances to cross it more easily than others?

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

What is the main lipid component of the plasma membrane?

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

Which term describes the property of the plasma membrane that allows some substances to cross it more easily than others?

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

According to the fluid mosaic model, a membrane is a fluid structure with a 'mosaic' of various _______ embedded in it.

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

What is the main function of the plasma membrane?

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

What is the most abundant lipid in the plasma membrane?

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

Which model states that a membrane is a fluid structure with a 'mosaic' of various proteins embedded in it?

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

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