Bacterial Cell Wall Structure Lecture

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Questions and Answers

Which structure is responsible for protein biosynthesis in bacteria?

  • Nucleoid
  • Plasmids
  • Ribosome (correct)
  • Inclusion bodies

What is the main function of the cell membrane in bacteria?

  • Synthesis of cell wall
  • Energy production
  • Selective permeability (correct)
  • Nucleoid protection

What is the composition of the cell membrane in bacteria?

  • Carbohydrates and proteins
  • Lipids and proteins (correct)
  • Lipids only
  • Proteins only

Which bacterial structure carries the set of genes of the organism?

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

What is the size of the bacterial ribosome responsible for protein biosynthesis?

<p>70S (D)</p> Signup and view all the answers

Which of the following is a function of the cell wall in bacteria?

<p>Regulating osmotic pressure (A)</p> Signup and view all the answers

What is the major difference between the cell wall of Gram-positive and Gram-negative bacteria?

<p>Thickness of the peptidoglycan layer (B)</p> Signup and view all the answers

What is the role of teichoic acid in the cell wall of Gram-positive bacteria?

<p>Linking peptidoglycan chains (A)</p> Signup and view all the answers

Which component is unique to the outer membrane of Gram-negative bacteria?

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

Where are porins located in bacterial cells?

<p>In the periplasmic space (C)</p> Signup and view all the answers

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