LiverMetab — KinFAST

Adaptive test — questions are selected based on your ability estimate. — Tag: GlycogenolysisGluconeogenesis

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A biochemistry student compares glycogenolysis and gluconeogenesis. Both processes can raise blood glucose during fasting, but they use different substrates and produce glucose by different means. Which combination best contrasts these two processes?

Glycogenolysis is the breakdown of stored glycogen into glucose molecules (a relatively rapid response to short-term fasting); gluconeogenesis is the synthesis of new glucose from non-carbohydrate precursors (lactate, amino acids, glycerol), used when glycogen stores are depleted during prolonged fasting. Both occur largely in the liver and are stimulated by glucagon and cortisol Glycogenolysis is the synthesis of glucose from carbohydrate substrates; gluconeogenesis is the storage of excess glucose as glycogen Glycogenolysis builds glycogen from glucose; gluconeogenesis builds glycogen from amino acids Both pathways start with dietary glucose entering the liver and storing it as triglycerides

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