Biochemistry Exam 4 Multiple Choice)
Pancreatic ____ is the digestive enzyme primarily responsible for the hydrolysis of
dietary plant starch. - answersAlpha-amylase
What is another name for glycolysis? - answersEmbden-Meyerhof Pathway
What molecule is an allosteric inhibitor of phosphofructokinase? - answersATP
What substance must be regenerated for glycolysis to proceed? - answersNAD+
What is the name of the process by which noncarbohydrate precursor molecules are
converted into glucose? - answersGluconeogenesis
_____ is the key enzyme that regulates the pace of glycolysis. -
answersPhosphofructokinase
In alcoholic fermentation, the decarboxylation of pyruvate requires a coenzyme that
contains the vitamin _____. - answersThiamine or B1
A potent allosteric activator of liver phosphofructokinase is _______, which is produced
from fructose-6-phosphate by PFK2. - answersFructose-2,6-biphosphate
The first step in gluconeogenesis is the ____ of pyruvate to form oxaloacetate. -
answersCarboxylation
Glycolysis produces a net of ____ moles of ATP per one mole of glucose. - answers2
The catalytic mechanism of the isomerization of a ketose into an aldose proceeds
through an ____ intermediate. - answersEnediol
Which of the following are the purpose of phosphorylating glucose in cytosol?
A. To trap glucose in the cell
B. To destabilize the glucose and facilitate the next series of metabolic steps
C. To convert it into a more stable form
D. All of the above
E. A and B - answersE. A and B
To trap glucose in the cell and to destabilize the glucose and facilitate the next series of
metabolic steps
Which of the following are reasons that glucose is a common metabolic fuel used by
living organisms?
Pancreatic ____ is the digestive enzyme primarily responsible for the hydrolysis of
dietary plant starch. - answersAlpha-amylase
What is another name for glycolysis? - answersEmbden-Meyerhof Pathway
What molecule is an allosteric inhibitor of phosphofructokinase? - answersATP
What substance must be regenerated for glycolysis to proceed? - answersNAD+
What is the name of the process by which noncarbohydrate precursor molecules are
converted into glucose? - answersGluconeogenesis
_____ is the key enzyme that regulates the pace of glycolysis. -
answersPhosphofructokinase
In alcoholic fermentation, the decarboxylation of pyruvate requires a coenzyme that
contains the vitamin _____. - answersThiamine or B1
A potent allosteric activator of liver phosphofructokinase is _______, which is produced
from fructose-6-phosphate by PFK2. - answersFructose-2,6-biphosphate
The first step in gluconeogenesis is the ____ of pyruvate to form oxaloacetate. -
answersCarboxylation
Glycolysis produces a net of ____ moles of ATP per one mole of glucose. - answers2
The catalytic mechanism of the isomerization of a ketose into an aldose proceeds
through an ____ intermediate. - answersEnediol
Which of the following are the purpose of phosphorylating glucose in cytosol?
A. To trap glucose in the cell
B. To destabilize the glucose and facilitate the next series of metabolic steps
C. To convert it into a more stable form
D. All of the above
E. A and B - answersE. A and B
To trap glucose in the cell and to destabilize the glucose and facilitate the next series of
metabolic steps
Which of the following are reasons that glucose is a common metabolic fuel used by
living organisms?
