14 Facts About Molecular pathway


In biochemistry, a metabolic Molecular pathway is a linked series of chemical reactions occurring within a cell.

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The degradative process of a catabolic Molecular pathway provides the energy required to conduct the biosynthesis of an anabolic Molecular pathway.

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Pathways are required for the maintenance of homeostasis within an organism and the flux of metabolites through a Molecular pathway is regulated depending on the needs of the cell and the availability of the substrate.

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Glycolysis results in the breakdown of glucose, but several reactions in the glycolysis Molecular pathway are reversible and participate in the re-synthesis of glucose .

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Catabolic Molecular pathway is a series of reactions that bring about a net release of energy in the form of a high energy phosphate bond formed with the energy carriers adenosine diphosphate and guanosine diphosphate to produce adenosine triphosphate and guanosine triphosphate, respectively.

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The resulting chemical reaction within the metabolic Molecular pathway is highly thermodynamically favorable and, as a result, irreversible in the cell.

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The coupled reaction of the catabolic Molecular pathway affects the thermodynamics of the reaction by lowering the overall activation energy of an anabolic Molecular pathway and allowing the reaction to take place.

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An anabolic Molecular pathway is a biosynthetic Molecular pathway, meaning that it combines smaller molecules to form larger and more complex ones.

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An amphibolic Molecular pathway is one that can be either catabolic or anabolic based on the availability of or the need for energy.

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Glyoxylate shunt Molecular pathway is an alternative to the tricarboxylic acid cycle, for it redirects the Molecular pathway of TCA to prevent full oxidation of carbon compounds, and to preserve high energy carbon sources as future energy sources.

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The rate-limiting step occurs near the beginning of the Molecular pathway and is regulated by feedback inhibition, which ultimately controls the overall rate of the Molecular pathway.

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Rate of turnover in a metabolic Molecular pathway, known as the metabolic flux, is regulated based on the stoichiometric reaction model, the utilization rate of metabolites, and the translocation pace of molecules across the lipid bilayer.

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One such Molecular pathway is oxidative phosphorylation within the electron transport chain .

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The biosynthetic Molecular pathway to produce vinblastine, including 30 enzymatic steps, has been transferred into yeast cells which is a convenient system to grow in large amounts.

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