Biochemistry Quiz
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LIPID AND AMINO ACID METABOLISM
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An experiment measures fatty acid synthesis rates in liver cells under different nutritional conditions. In the fed state, synthesis rate is 100 units. After 18 hours of fasting, synthesis drops to 8 units. When fasted cells are treated with insulin alone, synthesis increases to 25 units. When fasted cells are treated with both insulin and glucose, synthesis reaches 85 units. What mechanism best explains why both insulin and glucose are required for full restoration of fatty acid synthesis?
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