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For more information, please see full course syllabus of Microbiology
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Bacterial Cell Wall

  • Contribution of Cell Wall to Bacterial Classification
  • Cell Wall Function
  • Cell Wall Major Component
      • Peptidoglycan
  • Gram Positive Cell Wall
  • Gram Negative Cell Wall
  • Gram Staining of Cell Wall

Bacterial Cell Wall

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Overview 0:45
    • Gram Negative and Positive Bacteria
    • Bacteria Without Cell Walls
  • Recall the Prototype Cell 1:52
    • Plasma Membrane
    • Cytoplasm
    • Nucleus
  • Cell Wall Principles 2:41
    • Protects Bacteria
    • Survive in Fluid Environments
    • Attack by Antibiotics
    • Source of Identification
  • Peptidoglycan 4:47
    • Murein
    • Protects the Plasma Membrane
    • Gram Staining
  • Gram Positive and Gram Negative 5:55
  • Gram Positive Bacterial Cell Wall 8:26
    • Thick Structure
    • Gram Staining
    • Teichoic Acids in Cell Wall
    • Gram Positive Streptococci
  • Gram Negative Bacterial Cell Wall 9:57
    • Allows More Complexity
    • Outer Membrane Provides Barrier to Certain Antibiotics
    • Outer Membrane Contains Lipid A
  • The Gram Stain 12:36
    • Hans Christian Gram Invented a Stain to Visualize Bacteria
    • Gram Positive Bacteria
    • Gram Negative Bacteria
  • Example 1 14:55
  • Example 2 15:49