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Metabolic Pathways?
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series of separate, but interconnected reactions-- all of which are governed by these principles:
Complex chemical transformations occur step-wise Each reaction in a pathway is catalyzed by a specific enzyme. Metabolic pathways are similar in all organisms, from bacteria to sea weed to water buffalo --further support for the theory of descent with modification from a common ancestor. Many metabolic pathways are compartmentalized in eukaryotes, with certain reactions restricted to specific organelles The operation of each metabolic pathway can be regulated by the activity of key enzymes by activating or inhibiting them, thereby determining how fast the reactions will go. |
