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| Metabolic pathways represent interconnected biochemical reactions within cells that convert nutrients to energy and produce essential molecules. These pathways are of utmost importance for proper function of the cell as well as maintaining homeostasis in the organism. In every pathway is embedded a group of specific enzymes through which the reactions take place efficiently in the metabolism. The major kinds of metabolic pathways include catabolism, which is the breaking down of complex molecules into simpler ones in the production of energy. One such example is the catabolic pathway mediated by glucose to pyruvate conversion, yielding ATP as the primary currency of energy for a cell. However, the citric acid cycle or Krebs cycle further oxidizes acetyl-CoA and generates more ATP and other related metabolites. Anabolism is the synthesis of a complex compound from simpler precursors, such as biosynthesis of amino acids and nucleotides, and biosynthesis of lipids. Anabolism requires energy, which is obtained largely through consumption of the ATP produced through catabolism. Metabolic pathways are highly controlled processes for the production and use of energy to satisfy the needs of the cells. The number of enzymes and regulatory molecules determines these pathways, which are responsive to alterations in nutrient availability, energy status, and other intracellular signals. For example, when blood glucose levels are elevated, insulin activates pathways of glycolysis and glycogenesis. Thus, knowing metabolic pathways is important in understanding cellular functions, identifying metabolic disorders, and designing interventions. This scientific inquiry into such an area helps in discovering the mechanisms of diseases such as diabetes, cancer, and others wherein disturbed metabolic processes are one mechanism of action. |
Metabolic Pathways Online Quiz
By presenting 3 options to choose from, Metabolic Pathways Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Metabolic Pathways Questions and Answers and click over the correct answer.
- Test Name: Metabolic Pathways MCQ Quiz Practice
- Type: Quiz Test
- Total Questions: 40
- Total Marks: 40
- Time: 40 minutes
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