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