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Biochemistry Chapter 15 - Carbohydrate Metabolis ...
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What is the net energetic cost of converting two pyruvate to one glucose by gluconeogenesis in ATP equivalents (Count GTP's as ATP's)?
 
6
 
2
 
4
 
8
Which of the following serves as the free energy source for the metabolic conversion of oxaloacetate to phosphoenolpyruvate, which is catalyzed by PEP carboxykinase?
 
hydrolysis of GTP
 
hydrolysis of PPi
 
hydrolysis of ATP
 
hydrolysis of an internal phosphoanhydride bond
The biotin prosthetic group of pyruvate carboxylase is covalently attached to a ______ residue of the enzyme?
 
Lysine
 
Valine
 
Aspartate
 
Arginine
Glycolytic synthesis of ATP occurs via
 
substrate-level phosphorylation.
 
oxidation
 
reduction
 
photophosphorylation
The enzyme _____forms a Schiff base upon formation of the enzyme-substrate complex allowing aspartate mediated cleavage of the substrate.
 
Aldolase
 
hexokinase
 
phosphoglucose mutase
 
glucose-6-phosphatase
The enzymes that catalyze glycolysis are located in
 
cytosol.
 
mitochondrial matrix.
 
endoplasmic reticulum
 
endoplasmic reticulum
Which of the following enzymes catalyzes the transfer of a phosphoryl group from ATP to glucose?
 
Hexokinase
 
phosphoglucose isomerase
 
glucose-6-phosphatase
 
phosphoglucose mutase
NADPH used in lipid biosynthesis is produced by the ______ pathway
Pentose Phosphate
 The enzyme _____ is the major control point for glycolysis in muscle.
Phosphofructokinase
The products of glycolysis include: ATP, NADH, and ______.
Pyruvate