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Diagram of cell wall & flagellum of Gram- bacteria

Diagram of cell wall & flagellum of Gram- bacteria

G460/0043

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Credit

FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY

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.

Release details

Model release not required. Property release not required.

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