The Cell: A Molecular Approach

Fourth Edition

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Chapter 14: Cell Walls and the Extracellular Matrix

Micrograph 14.1  Bacterial Cell Wall

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Cell wall of the gram-negative bacterium Leptothrix discophora. Visible are the inner and outer membranes and the peptidoglycan cell wall. (Transmission electron micrograph.) [© T. J. Beveridge/BPS.]