The enzyme pyruvate decarboxylase is involved in neither pathway. a) the gluconeogenesis pathway.
b) both pathways.
c) the glycolysis pathway.
d) neither pathway.

It's involved in glycogenesis and glycolysis

Explanation:

Pyruvate decarboxylase is an enzyme that involve in the decarboxylation of pyruvic acid to acetaldehyede in prokaryotic cytoplasm or that convert pyruvic acid to acetyl co A. It occur in the mitochondria matrix and it link glycolysis to tricaboxylic acid. It is involved in glucogenesis pathway since carbondioxide is converted to oxaloacetate

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explanation:

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