BCH Exam 3
Which of the following is FALSE for catabolic pathways?
They generate oxidized enzyme cofactors.
They extract usable chemical energy from fuel molecules.
They generate ATP.
They are oxidative. - correct answer ✔✔They generate oxidized enzyme cofactors.
Cells control or regulate flux through metabolic pathways by:
Allosteric control of enzymes
Covalent modification of enzymes
Genetic control of enzyme concentrations
Allosteric control and covalent modification
All of the above - correct answer ✔✔Allosteric control and covalent modification
Any sugar that has a free aldehyde group is called a(n) _____.
aldohexose
alditol
non-reducing sugar
reducing sugar
ketose - correct answer ✔✔reducing sugar
Which of the following are characteristic of cellulose?
highly extended fibers
β(1 alpha 4) glycosidic bonds
extensive hydrogen bonding between individual molecules
extensive hydrogen bonding between individual molecules
, all of the above - correct answer ✔✔all of the above
Energy is generated during _____, the breakdown of larger molecules into smaller while energy is
consumed during _____, the building of larger molecules from smaller ones.
reduction reactions; oxidation reactions
autotrophic reactions; heterotrophic reactions catabolic reactions; anabolic reactions
hydrolysis reactions; condensation reactions
none of the above - correct answer ✔✔catabolic reactions; anabolic reactions
The _____ stores glucose as glycogen and converts excess glucose to _____.
muscle; amino acids
adipose tissue; fatty acids
liver; fatty acids
brain; energy
none of the above - correct answer ✔✔liver; fatty acids
Amino acids can be converted to _____.
carbohydrates
fatty acids
nucleotides
peptides
all of the above - correct answer ✔✔all of the above
The conversion of fructose-6-phosphate to fructose-1,6-bisphosphate is a rate determining step in
glycolysis and is therefore reversible
True
False - correct answer ✔✔false
The glycolytic pathway must be supplied with its primary oxidizing agent ________ .
Which of the following is FALSE for catabolic pathways?
They generate oxidized enzyme cofactors.
They extract usable chemical energy from fuel molecules.
They generate ATP.
They are oxidative. - correct answer ✔✔They generate oxidized enzyme cofactors.
Cells control or regulate flux through metabolic pathways by:
Allosteric control of enzymes
Covalent modification of enzymes
Genetic control of enzyme concentrations
Allosteric control and covalent modification
All of the above - correct answer ✔✔Allosteric control and covalent modification
Any sugar that has a free aldehyde group is called a(n) _____.
aldohexose
alditol
non-reducing sugar
reducing sugar
ketose - correct answer ✔✔reducing sugar
Which of the following are characteristic of cellulose?
highly extended fibers
β(1 alpha 4) glycosidic bonds
extensive hydrogen bonding between individual molecules
extensive hydrogen bonding between individual molecules
, all of the above - correct answer ✔✔all of the above
Energy is generated during _____, the breakdown of larger molecules into smaller while energy is
consumed during _____, the building of larger molecules from smaller ones.
reduction reactions; oxidation reactions
autotrophic reactions; heterotrophic reactions catabolic reactions; anabolic reactions
hydrolysis reactions; condensation reactions
none of the above - correct answer ✔✔catabolic reactions; anabolic reactions
The _____ stores glucose as glycogen and converts excess glucose to _____.
muscle; amino acids
adipose tissue; fatty acids
liver; fatty acids
brain; energy
none of the above - correct answer ✔✔liver; fatty acids
Amino acids can be converted to _____.
carbohydrates
fatty acids
nucleotides
peptides
all of the above - correct answer ✔✔all of the above
The conversion of fructose-6-phosphate to fructose-1,6-bisphosphate is a rate determining step in
glycolysis and is therefore reversible
True
False - correct answer ✔✔false
The glycolytic pathway must be supplied with its primary oxidizing agent ________ .
