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A Gram negative rod bacterium is cut open lengthwise to reveal its layered cell envelope and tangled nucleoid inside. The cutaway shows the outer membrane, a thin peptidoglycan layer and the inner membrane as stacked bands of beads, with chunky membrane proteins set into the wall and short chains sprouting from the surface. Coiled strands of genetic material loop through the center of the capsule-shaped cell. An excellent cell biology teaching model for microbiology lessons and a curious display piece for science classrooms.

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