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This educational material delves into the intricate world of bacteria, exploring their cellular shapes and arrangements, including coccus and bacillus forms. It covers essential anatomical features, their functions, and the process of binary fission. The content explains the phases of bacterial growth curves and factors influencing microbial activity, emphasizing endospore formation and genetic mutations. Additionally, it discusses gene transfer events that impact bacterial characteristics, equipping students with a comprehensive understanding of prokaryotic cells and their behavior in various environments.
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Objectives: Ch. 4, 5, 8, 9 • Describe bacteria by appropriate cellular shape and arrangement (grouping) • Understand the location and role of each anatomical feature discussed in lecture • Describe binary fission • Describe each phase of the typical bacterial growth curve • Understand the role and process of endospore formation • Identify the environmental conditions which influence cellular activity and how each condition can be used to control microbes • Describe and understand the nature and causes of genetic point mutations and frame shift mutations • Understand the four gene transfer events which can influence the nature of bacterial cells
Bacterial shapes: Coccus = __________ Bacillus = ___________ (d) Palisades =
Prokaryotic cells: Cell envelope Cell membrane Cell wall External structures Flagella Conjugation (Sex) Pilus Pilus (fimbria) Glycocalyx Internal structures Nucleoid Plasmid Ribosome Inclusion
