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 isomerase
glucose-6-phosphatase
phosphoglucose mutase
Hexokinase
The enzymes that catalyze glycolysis are located in
endoplasmic reticulum
mitochondrial matrix.
endoplasmic reticulum
cytosol.
The enzyme _____forms a Schiff base upon formation of the enzyme-substrate complex allowing aspartate mediated cleavage of the substrate.
glucose-6-phosphatase
hexokinase
Aldolase
phosphoglucose mutase
Glycolytic synthesis of ATP occurs via
reduction
oxidation
substrate-level phosphorylation.
photophosphorylation
The biotin prosthetic group of pyruvate carboxylase is covalently attached to a ______ residue of the enzyme?
Arginine
Aspartate
Valine
Lysine
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 ATP
hydrolysis of GTP
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
