Nyawa vist group 7

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The second chapter we learn about cell wall and membrane structure of prokaryote. Flagella is long filamentous appendages that propel bacteria. from: http://i0.wp.com/microbeonline.com/wp-content/uploads/2013/04/flagellar-arrangement-of-bacteria.jpg I wonder if the number and arrangement effect the movement? There are three basic part Filament hook basal body Axial filament are bundles of fibrils that arise at the end of cell beneath the outer sheath.Present in spirochetes group of bacteria What I have learn: Gram negative cell wall have few layer of peptidoglycan Gram positive have teichoic acid. Archaea have pseudomurein 
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What I have learn

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          The first chapter of microbial ecology is The principles of ecology. When learning this chapter, I just realized that ecology is a big subject that has many principles and disciplines. I also learn about strategist microbes used that is r and k. r strategist has high reproductive rates while k strategist is more to adaptation. Another important aspect covered is homeostasis. Autotrophic succession happen when P:R> 1. P stands for photosynthesis, while R is respiration. Autotrophic succession cause accumulation of biomass. When P:R< 1, the situation is known as heterotrophic succession where consumption of organic matter is more than the production.   When studying next topic,Microbial Group and Microbial Nutrition Metabolism it is a  bit repetition on what we have learn before this. In microbial group  I discover  few microbes on certain habitat based on their microbial group.While in Microbial Nutrition Metabolism I learn ...
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18/11/14     Today we learn about Mutation.Mutation is any inheritable change in the base sequence of DNA. A strain carrying such a change is mutant.Differ from parental strain in genotype and phenotype.Mutation can be spontaneous or induced. Spontaneous mutation-occurs without mutagens                                     -alters the structure of bases in DNA Induced mutation-chemical and physical agents to induced the mutation There are many types of mutations Base substitution-single base at one point in DNA sequence replace with different base Missence mutation Silent Mutations http://i0.wp.com/www.namrata.co/wp-content/uploads/2013/04/Point-mutations.png?resize=384%2C177 Nonsense Mutations http://www7.0zz0.com/2011/08/05/01/948870633.gif Frameshift mutatio Before learning about mutation in this class I thought that when a mutation a change alwa...
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