Carbohydrate
A catabolic intermediate which stimulates phosphofructokinase would stimulate

glycogen synthesis
glycolysis
none of these
gluconeogenesis

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Carbohydrate
Which of the following does not occur during gluconeogenesis?

The carboxylation of pyruvate to oxaloacetate
The conversion of PEP to fructose bisphosphate
The conversion of pyruvate to phosphoenolpyruvate (PEP)
The decarboxylation of oxaloacetate to phosphoenolpyruvate

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Carbohydrate
Insulin

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

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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

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

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