Diagram of cell wall & flagellum of Gram- bacteria
Wall Art and Photo Gifts from Science Photo Library
Diagram of cell wall & flagellum of Gram- bacteria
Diagrammatic representation of the cell wall, cell membrane, and a flagellum of a Gram-negative bacterium. Gram-negative bacteria have an outer lipopolysaccharide layer (above, yellow), as an outer membrane to the cell wall. Beneath it is the peptidoglycan cell wall, rigid & protective, made of sheets of glycan (sugar, white bricks) with peptide cross-links. The true cell membrane is at bottom (yellow, phospholipid). Pathogens attach to both membranes, molecules diffuse through, & anti- gens are found on them. The rotor mechanism of a flagellum is portrayed (red and blue); it rotates the flagellum like a propeller for movement
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6400531
© FRANCIS LEROY, BIOCOSMOS/SCIENCE PHOTO LIBRARY
Bacteria Cell Membrane Cell Structure Cell Wall Cytology Flagellum Gram Negative Micro Biology
EDITORS COMMENTS
This print showcases a detailed diagrammatic representation of the cell wall, cell membrane, and flagellum of a Gram-negative bacterium. The complexity and intricacy of these microscopic structures are beautifully captured in this artwork. The outer lipopolysaccharide layer, depicted in vibrant yellow above the diagram, forms an outer membrane to the cell wall. This layer acts as a protective shield for the bacterium. Beneath it lies the peptidoglycan cell wall, portrayed as rigid white bricks with peptide cross-links. This structure provides further protection and support to the bacterium. At the bottom of the diagram is the true cell membrane, represented by a striking yellow coloration due to its phospholipid composition. Both membranes serve as attachment points for pathogens while allowing molecules to diffuse through them. Additionally, antigens can be found on these membranes. Highlighted in red and blue is the rotor mechanism of a flagellum – an appendage that enables movement like a propeller. Its presence emphasizes how bacteria utilize this intricate structure for mobility. This artful depiction not only captures essential elements of cytology but also serves as an educational tool for understanding bacterial biology at its core. It reminds us of both their remarkable structural complexity and their role in various biological processes.
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