short note on biochemical pathway for bacteria
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Answer:
During the process of evolution, some bacteria have lost genes that encode certain biosynthetic reactions and are hence likely to require nutritional supplements. For example, Mycoplasma, whose DNA content is about one-quarter the size of that of E. coli, has many nutritional requirements and has even lost the ability to make a cell wall.The classification of bacteria has long presented unique challenges in biological systematics. In the 17th century, when bacteria were first observed under a microscope, only two categories of life were recognized in biological systematics: plants and animals. Lacking any obvious relation to animals, bacteria initially were classified in the plant kingdom. In the latter part of the 19th century, however, German zoologist Ernst Haeckel, recognizing the basic morphological characteristics of single-celled life—
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Biochemical pathways or metabolic pathway is a step by step series of interconnected biochemical reactions in which each step is catalyzed by a specific enzyme. During the series of chemical reaction, the substrate is converted into a product that in turn acts as a substrate for subsequent reaction. Thus a molecule(s) or substrate(s) are being continuously converted into metabolic intermediates eventually yielding a final product(s).
Biochemical Pathways Definition
“Biochemical pathways are a series of chemical reactions occurring in a living system.”
Biochemical pathways are synonymous with metabolic pathways. The word metabolism comes from a Greek word “metabole” which means change referring to all the chemical reactions that occur inside the organism’s body. These pathways are necessary for maintaining the homeostasis of the organism and to keep it alive.