Bacteria And Its Effects On The Natural Environment

1592 Words Oct 24th, 2015 7 Pages
Microscopic single-celled organisms, such as bacteria, consist of a seemingly simple internal structure that lacks membrane-bound organelles, yet bacteria thrive in diverse nutritional environments. The significant ability of bacteria to adapt to a wide variety of nutritional environments reflects their use of overlapping regulatory systems that link gene expression to intracellular accumulation of a small number of key metabolites. Bacteria survive using a diverse array of carbon sources, especially if its main carbon source is absent in their natural environment. Bacteria have carbon components that we know are required for energy production but how does the transport of carbon sources, which is in turn utilized in the central metabolic pathway connected to gene regulation? The central metabolic pathways are those pathways that provide the precursor metabolites to all the other pathways for the synthesis of macromolecules such as DNA, RNA, and proteins. Symbiotic interactions between bacteria and its hosts have been studied for about half a century now to help develop a more detailed view of the reactions that generate the central metabolites in bacterial cells. In some circumstances, bacteria produce harsh biochemicals as a response to nutritional stress. The genes that are required for the utilization of nutritional sources are typically regulated by the availability of the substrate. Similarly, the genes required for the biosynthesis of particular cellular…
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