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Bacterial Cell Structure and Function

General Microbiology | Bacterial Cell Structure and Function | Sumaya Yaseen Al-dabbagh Page | 1 Sumaya Yaseen Al-dabbagh, MSc Assistant Professor, Department of Microbiology College of Veterinary Medicine, University of Mosul, Mosul, Iraq Sumaya_Aldabbagh General Microbiology | Part I | 3rd year 2019 Bacterial Cell Structure and Function Prokaryotes and Eukaryotes: The chief distinguishing characteristics of Prokaryotes: 1- Their DNA (genetic material) is not enclosed within a membrane and is one circular chromosome. 2- Their DNA is not associated with histones (special chromosomal proteins found in eukaryotes) other proteins are associated with the DNA. 3- They lack membrane-enclosed organelles. 4- Their cell walls almost always contain the complex polysaccharide peptidoglycan.

General Microbiology | Bacterial Cell Structure and Function | Sumaya Yaseen Al-dabbagh Page | 7 Bacteria with flagella are motile; that is, they have the ability to move on their own. Flagellum is a semi rigid, helical structure that moves the cell by rotating from the basal body. The movement of

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