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One of the key-enzymes involved in gluconeogenesis is ______________(a) phosphoenolpyruvate carboxykinase(b) phosphoenolpyruvate carboxylase(c) phosphoenolpyruvate ethanol(d) phosphoenolpyruvate esteraseI had been asked this question by my school principal while I was bunking the class.Enquiry is from Gene Expression Control topic in portion Control of Gene Expression of Cell Biology

Answer»

Correct CHOICE is (a) phosphoenolpyruvate carboxykinase

The explanation is: One of the key enzymes INVOLVED in the metabolic PATHWAY that converts pyruvate to glucose (gluconeogenesis) is phosphoenolpyruvate carboxykinase, SYNTHESIZED in the liver when glucose levels are LOW.



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