Altay®. Greatly enlarged bacterium model. This set of 4 models illustrates the anatomical complexity of a generalized prokaryote. The cell wall, cytoplasmic membrane, cellular organelles, and flagellum are well rendered. Included are separate block models of the cell walls of Gram-positive and Gram-negative bacteria. A bacterial spore is also included, opened to reveal details of the spore coat and interior structures. Mounted on durable polymer base. Comes with numbered key to identify 40 structures. Size, 52 x 38 x 11 cm.