CHEM 210 Biochemistry Final Exam Study Guide
Latest Update 2026 | Portage Learning | Pass Exam
Prep
1. Metal ions, such as Fe2+ and Mg2+, that are required by an enzyme for its
ability to function are called:
conjugators.
cofactors.
coenzymes.
counterions.
2. Describe the role of nitrogen in the structure of biomolecules.
Nitrogen is primarily involved in energy production within cells.
Nitrogen is a key component of amino acids and nucleotides, which
are the building blocks of proteins and nucleic acids, respectively.
Nitrogen serves as a structural element in carbohydrates.
Nitrogen is not significant in the structure of biomolecules.
3. What term is used to describe the time it takes for a compound to flow
through a metabolic pathway?
Rate
Flow
Velocity
Flux
4. Describe the role of cofactors in enzyme activity.
, Cofactors are molecules or ions that bind to enzymes and are
essential for their catalytic activity.
Cofactors are the final products of enzymatic reactions.
Cofactors are substrates that enzymes act upon.
Cofactors are inhibitors that prevent enzyme activity.
5. What base will pair with Adenine in RNA?
Guanine
Uracil
Thymine
Cytosine
another Adenine
6. What is the primary outcome of oxidative phosphorylation in terms of ATP?
No effect on ATP
Conversion of ATP to ADP
Consumption of ATP
Production of ATP
7. In which part of the mitochondria does ATP production occur as H+ ions flow
through?
Outer mitochondrial membrane
Mitochondrial matrix
Inner mitochondrial membrane
Cytoplasm
,8. Describe the base pairing rules in RNA and how they differ from DNA.
In RNA, adenine pairs with uracil, whereas in DNA, adenine pairs
with thymine.
In RNA, adenine pairs with guanine, while in DNA, adenine pairs with
uracil.
In RNA, adenine pairs with cytosine, whereas in DNA, adenine pairs
with guanine.
In RNA, adenine pairs with thymine, while in DNA, adenine pairs with
cytosine.
9. Describe the role of ATP in the conversion of fructose-6-phosphate to
fructose-1,6-bisphosphate.
ATP is consumed to phosphorylate fructose-6-phosphate, forming
fructose-1,6-bisphosphate.
Fructose-1,6-bisphosphate is formed without ATP.
ATP is produced during the reaction.
ATP has no role in this conversion.
10. What is the name of the metabolic pathway that breaks down fatty acids?
Glycolysis
Citric acid cycle
Beta-oxidation
Pentose phosphate pathway
11. If a cell membrane is composed primarily of lipids, what properties would
you expect it to exhibit?
, The cell membrane would be rigid and impermeable to all
substances.
The cell membrane would be completely soluble in water.
The cell membrane would be highly conductive to ions.
The cell membrane would be flexible and selectively permeable.
12. What term is used to describe the measure of disorder in a system during a
reaction?
Entropy
Gibbs free energy
Activation energy
Enthalpy
13. Describe the role of carbon and nitrogen in the structure of biomolecules.
Both carbon and nitrogen are primarily involved in energy
production.
Carbon is only found in carbohydrates, and nitrogen is only in lipids.
Carbon and nitrogen do not play significant roles in biomolecules.
Carbon serves as the backbone of biomolecules, while nitrogen is
essential for amino acids and nucleotides.
14. Oxidative phosphorylation is:
the production of ATP from the redox reactions of the ETC
the formation of ATP from transfer of a phosphate group from an
organic molecule
the production of ATP using energy from glycolysis
Latest Update 2026 | Portage Learning | Pass Exam
Prep
1. Metal ions, such as Fe2+ and Mg2+, that are required by an enzyme for its
ability to function are called:
conjugators.
cofactors.
coenzymes.
counterions.
2. Describe the role of nitrogen in the structure of biomolecules.
Nitrogen is primarily involved in energy production within cells.
Nitrogen is a key component of amino acids and nucleotides, which
are the building blocks of proteins and nucleic acids, respectively.
Nitrogen serves as a structural element in carbohydrates.
Nitrogen is not significant in the structure of biomolecules.
3. What term is used to describe the time it takes for a compound to flow
through a metabolic pathway?
Rate
Flow
Velocity
Flux
4. Describe the role of cofactors in enzyme activity.
, Cofactors are molecules or ions that bind to enzymes and are
essential for their catalytic activity.
Cofactors are the final products of enzymatic reactions.
Cofactors are substrates that enzymes act upon.
Cofactors are inhibitors that prevent enzyme activity.
5. What base will pair with Adenine in RNA?
Guanine
Uracil
Thymine
Cytosine
another Adenine
6. What is the primary outcome of oxidative phosphorylation in terms of ATP?
No effect on ATP
Conversion of ATP to ADP
Consumption of ATP
Production of ATP
7. In which part of the mitochondria does ATP production occur as H+ ions flow
through?
Outer mitochondrial membrane
Mitochondrial matrix
Inner mitochondrial membrane
Cytoplasm
,8. Describe the base pairing rules in RNA and how they differ from DNA.
In RNA, adenine pairs with uracil, whereas in DNA, adenine pairs
with thymine.
In RNA, adenine pairs with guanine, while in DNA, adenine pairs with
uracil.
In RNA, adenine pairs with cytosine, whereas in DNA, adenine pairs
with guanine.
In RNA, adenine pairs with thymine, while in DNA, adenine pairs with
cytosine.
9. Describe the role of ATP in the conversion of fructose-6-phosphate to
fructose-1,6-bisphosphate.
ATP is consumed to phosphorylate fructose-6-phosphate, forming
fructose-1,6-bisphosphate.
Fructose-1,6-bisphosphate is formed without ATP.
ATP is produced during the reaction.
ATP has no role in this conversion.
10. What is the name of the metabolic pathway that breaks down fatty acids?
Glycolysis
Citric acid cycle
Beta-oxidation
Pentose phosphate pathway
11. If a cell membrane is composed primarily of lipids, what properties would
you expect it to exhibit?
, The cell membrane would be rigid and impermeable to all
substances.
The cell membrane would be completely soluble in water.
The cell membrane would be highly conductive to ions.
The cell membrane would be flexible and selectively permeable.
12. What term is used to describe the measure of disorder in a system during a
reaction?
Entropy
Gibbs free energy
Activation energy
Enthalpy
13. Describe the role of carbon and nitrogen in the structure of biomolecules.
Both carbon and nitrogen are primarily involved in energy
production.
Carbon is only found in carbohydrates, and nitrogen is only in lipids.
Carbon and nitrogen do not play significant roles in biomolecules.
Carbon serves as the backbone of biomolecules, while nitrogen is
essential for amino acids and nucleotides.
14. Oxidative phosphorylation is:
the production of ATP from the redox reactions of the ETC
the formation of ATP from transfer of a phosphate group from an
organic molecule
the production of ATP using energy from glycolysis
