Prokaryotic Cell Structure: Cell Membrane Functions

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Questions and Answers

What is the primary function of the cell membrane in a prokaryotic cell?

  • To provide structural strength to the cell
  • To regulate the entrance and exit of dissolved substances (correct)
  • To catalyze key cell functions
  • To conserve energy

What is the component of the bacterial cell membrane that strengthens it?

  • Glycerol molecule
  • Fatty acids
  • Phospholipid bilayer
  • Hopanoids (correct)

What is the role of the cell membrane in energy conservation?

  • Generating energy through respiration
  • Storing energy in the form of ATP
  • Playing a major role in energy consumption (correct)
  • None of the above

What is the difference between the bacterial and archaeal cell membrane?

<p>Chemistry of the membrane (B)</p> Signup and view all the answers

What is the function of the layer outside the cytoplasmic membrane in Archaea?

<p>To provide structural strength and shape to the cell (A)</p> Signup and view all the answers

What is the effect of targeting bacterial cell wall synthesis?

<p>The cell becomes susceptible to osmotic lysis (C)</p> Signup and view all the answers

What is the main benefit of antibiotics that target bacterial cell walls?

<p>They are of obvious benefit for treating bacterial infections (D)</p> Signup and view all the answers

What is the main component of the cell wall in Gram-positive bacteria?

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

What is the function of teichoic acid in the bacterial cell wall?

<p>To bind divalent metal ions (A)</p> Signup and view all the answers

What is the name of the space located between the outer surface of the cytoplasmic membrane and the inner surface of the outer membrane?

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

What is the characteristic of specific porins?

<p>They contain a binding site for one or a group of structurally related substances (C)</p> Signup and view all the answers

What is the main characteristic of pseudomurein?

<p>It is immune from destruction by both lysozyme and penicillin (A)</p> Signup and view all the answers

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