When.com Web Search

  1. Ad

    related to: gram stain picture quiz questions life science questions and answers q a

Search results

  1. Results From The WOW.Com Content Network
  2. Gram stain - Wikipedia

    en.wikipedia.org/wiki/Gram_stain

    A Gram stain of mixed Staphylococcus aureus (S. aureus ATCC 25923, gram-positive cocci, in purple) and Escherichia coli (E. coli ATCC 11775, gram-negative bacilli, in red), the most common Gram stain reference bacteria. Gram stain (Gram staining or Gram's method), is a method of staining used to classify bacterial species into two large groups ...

  3. Cell envelope - Wikipedia

    en.wikipedia.org/wiki/Cell_envelope

    Schematic of typical Gram-positive cell wall showing arrangement of N-Acetylglucosamine and N-Acetylmuramic acid; Teichoic acids not shown.. The Gram-positive cell wall is characterized by the presence of a very thick peptidoglycan layer, which is responsible for the retention of the crystal violet dyes during the Gram staining procedure.

  4. Gram-positive bacteria - Wikipedia

    en.wikipedia.org/wiki/Gram-positive_bacteria

    Both gram-positive and gram-negative bacteria commonly have a surface layer called an S-layer. In gram-positive bacteria, the S-layer is attached to the peptidoglycan layer. Gram-negative bacteria's S-layer is attached directly to the outer membrane. Specific to gram-positive bacteria is the presence of teichoic acids in the cell wall. Some of ...

  5. Staining - Wikipedia

    en.wikipedia.org/wiki/Staining

    Starch is a substance common to most plant cells and so a weak iodine solution will stain starch present in the cells. Iodine is one component in the staining technique known as Gram staining, used in microbiology. Used as a mordant in Gram's staining, iodine enhances the entrance of the dye through the pores present in the cell wall/membrane.

  6. Bacterial cellular morphologies - Wikipedia

    en.wikipedia.org/wiki/Bacterial_cellular...

    Aggregatibacter actinomycetemcomitans is a Gram-negative coccobacillus prevalent in subgingival plaques. Acinetobacter strains may grow on solid media as coccobacilli. Bordetella pertussis is a Gram-negative coccobacillus responsible for causing whooping cough. Yersinia pestis, the bacterium that causes plague, is also coccobacillus. [26]

  7. File:Gram stain 01.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Gram_stain_01.jpg

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  8. Hans Christian Gram - Wikipedia

    en.wikipedia.org/wiki/Hans_Christian_Gram

    In Berlin, in 1884, Gram developed a method for distinguishing between two major classes of bacteria. [1] This technique, known as Gram staining, continues to be a standard procedure of medical microbiology. This work gained Gram an international reputation. The staining method later played a major role in classifying bacteria. Gram was a ...

  9. Wikipedia:Featured picture candidates/Gram stain of Candida ...

    en.wikipedia.org/.../Gram_stain_of_Candida_albicans

    The pink blobs are vaginal epithelial cells and the dark granules are common artefacts of the Gram-stain. (Note: microscope lenses do not have F-numbers they have Numerical apertures, this one was NA 1.25 and oil immersion). Articles in which this image appears Candidiasis, Candida albicans, Yeast, Gram stain, Chlamydospore, Fungus