Carbohydrate
The conversion of pyruvate to lactate is catalysed by

pyruvate decarboxylase
pyruvate dismutase
lactate dehydrogenase
pyruvate carboxylase

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Carbohydrate
When living organisms are cooled below some critical body temperature, the metabolic reactions within their cells cease to function properly. This malfunction occurs because

their enzymes lose the proper three-dimensional shape
enzyme active sites become permanently bound to substrates
the activation energy for the reaction is raised
there is insufficient molecular motion for substrates to interact

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Carbohydrate
Insulin

stimulates gluconeogenesis and inhibits glycolysis
inhibits gluconeogenesis and glycolysis
stimulates gluconeogenesis and glycolysis
inhibits gluconeogenesis and stimulates glycolysis

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