Diagram of cell wall & flagellum of Gram- bacteria

Diagram of cell wall & flagellum of Gram- bacteria

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Caption: 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.

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Keywords: art, artwork, bacteria, biological, biology, cell membrane, cell structure, cell wall, cytology, flagellum, gram-negative, microbiology, peptidoglycan

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