MIC 205A Study Guide - Quiz Guide: Bioterrorism, Shigella Dysenteriae, Gram Staining

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A gram stain is not a definitive test used to identify bacterial species. The following are all an enteric: salmonella, shigella, escherichia, and enterobacter. Escherichia coli is a gram-negative, facultatively anaerobic, rod- shaped bacterium of the genus escherichia that is commonly found in the lower intestine of warm-blooded organisms. Shigella dysenteriae symptoms include bloody diarrhea, fever, abdominal pain, and tenesmus. Glycocalyx is the general term for gelatinous substance that is composed of polysaccharides, polypeptides, or both, that surround bacterial cells. If two organisms have similar rrna sequences, you can conclude that they evolved from a common ancestor i. e. ribotyping. Type iii secretion is known as the needle complex. The following are based on nucleic-acid hybridization: dna chip, The difference between simple diffusion and facilitated diffusion is that facilitated diffusion requires transport proteins. Francisella tularensis is a category a bioterrorism agent. Gram negative bacteria do not have teicholic acid in their cell walls.