Carbohydrate
Under aerobic condition pyruvate is converted by pyruvate dehydrogenase to

glyceraldehyde 3 phosphate
acetyl CoA
lactate
phosphoenol pyruvate

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Carbohydrate
Glucagon and epinephrine

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

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Carbohydrate
The multistep pathways of metabolism are efficient because they

spread the enzymes for a pathway into several different organelles
locate all of the enzymes for a pathway in the same place within the cell
use the same substrate for all of the enzymes in the pathway
use the same enzyme for all of the substrates in the pathway

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