Carbohydrate
The conversion of pyruvate to oxaloacetate

involves the fixation of carbon dioxide
requires biotin
occurs in the mitochondria
all of the above

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Carbohydrate
Gluconeogenesis is the

formation of glycogen
synthesis of glucose from non-carbohydrate precursors
breakdown of glycogen to glucose
breakdown of glucose to pyruvate

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Carbohydrate
Which of the following does not occur during gluconeogenesis?

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

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Carbohydrate
The multistep pathways of metabolism are efficient because they

use the same substrate for all of the enzymes in the pathway
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 enzyme for all of the substrates in the pathway

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