Peptidoglycan: Definition, Function & Structure


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What primary function does the peptidoglycan layer of the cell wall serve?

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1. Gram-positive bacteria have a _____ peptidoglycan layer.

2. A string of alternating N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) molecules form the _____.

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About This Quiz & Worksheet

With this quiz you'll be able to assess your knowledge of the function and structure of peptidoglycan. A certain type of bacteria is the focus of several questions.

Quiz & Worksheet Goals

Taking this quiz will reveal if you can answer questions about:

  • Gram-positive bacteria
  • Penicillin and lysozymes
  • Peptidoglycan's function in a cell wall

Skills Practiced

You'll keep improving the skills you use to study by practicing these abilities during the quiz:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on peptidoglycan
  • Information recall - access the knowledge you've gained regarding what is formed by N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) molecules
  • Interpreting information - verify that you can read information regarding gram-positive bacteria's susceptibility to penicillin and lysozymes and interpret it correctly

Additional Learning

Break down the barriers between you and further education about this subject by reading the lesson entitled Peptidoglycan: Definition, Function & Structure. If you study this lesson, you'll learn about:

  • Functions of a cell wall
  • The formation of peptidoglycan
  • How gram-positive and gram-negative bacteria are different