CHEM 210 BIOCHEMIISTRY FINAL EXAM -PORTAGE
LEARNING| ACTUAL QUESTIONS AND VERIFIED ANSWERS |
GRADED A+ | PASS FIRST ATTEMPT | BRAND NEW 2026 UP-
DATE!!!!!
1. A hydrogen bond is
none of these.
a sharing of a pair of electrons between a hydrogen and an oxygen
nucleus.
a sharing of a pair of electrons between a hydrogen nucleus and either
an oxygen or a nitrogen nucleus.
an attractive force that involves, in the case of water, a hydrogen
atom of one water molecule and an oxygen atom of different water
molecule.
2. What is the primary characteristic of a clathrate structure?
It is a cage-like structure formed by water molecules trapping gas
molecules.
It is a carbohydrate polymer.
It is a type of lipid bilayer.
It is a protein complex involved in cellular respiration.
3. What term is used to describe a molecule that inhibits an enzyme's activity?
Activator
Substrate
Cofactor
, Inhibitor
4. Describe the role of nitrogen in biomolecules and why it is essential for living
organisms.
Nitrogen is only found in lipids and carbohydrates.
Nitrogen is a key component of amino acids and nucleotides, which
are essential for protein synthesis and genetic material.
Nitrogen serves as a structural element in cell membranes.
Nitrogen is primarily involved in energy production within cells.
5. Often when drawing organic molecules, much of the molecule is depicted as
an 'R' and only the part of the molecule that can perform specific reactions is
shown. This group of atoms is referred to as a .
catalytic group
molecular group
functional group
reactive group
6. What is the term used to describe a molecule that inhibits enzyme activity by
binding to the active site?
Allosteric regulator
Cofactor
Non-competitive inhibitor
Competitive inhibitor
7. What are the primary types of molecules found in cellular membranes?
Phospholipids
Nucleic acids
, Carbohydrates
Proteins
8. What are two aspects of living organisms that biochemists study, as
mentioned in the module?
Metabolic pathways and cellular structures
Cellular respiration and photosynthesis
Nutrient absorption and waste elimination
Genetic sequences and environmental impacts
9. This element is the basis for all living matter on Earth.
Oxygen
Nitrogen
Hydrogen
Carbon
10. What term is used to describe the measure of heat content in a chemical
reaction?
Activation energy
Enthalpy
Gibbs free energy
Entropy
11. Which functional group is not found in DNA?
thiol
phosphate
, amine
none of the above
alcohol
12. What are the two key electron carriers produced during the breakdown of
biomolecules in energy production?
NADH and FADH2
ATP and ADP
CoA and ATP
NADPH and FADH
13. If a biochemist is investigating a new drug that affects cellular structures,
what other aspect of biochemistry might they need to consider?
The drug's impact on metabolic pathways
The drug's influence on environmental factors
The drug's effect on genetic sequences
The drug's role in nutrient absorption
14. The flow of matter through a metabolic pathway is called?
current
flux
degree of amplification
cascade effect
15. Which is not an element commonly found in biological macromolecules?
F. hydrogen
LEARNING| ACTUAL QUESTIONS AND VERIFIED ANSWERS |
GRADED A+ | PASS FIRST ATTEMPT | BRAND NEW 2026 UP-
DATE!!!!!
1. A hydrogen bond is
none of these.
a sharing of a pair of electrons between a hydrogen and an oxygen
nucleus.
a sharing of a pair of electrons between a hydrogen nucleus and either
an oxygen or a nitrogen nucleus.
an attractive force that involves, in the case of water, a hydrogen
atom of one water molecule and an oxygen atom of different water
molecule.
2. What is the primary characteristic of a clathrate structure?
It is a cage-like structure formed by water molecules trapping gas
molecules.
It is a carbohydrate polymer.
It is a type of lipid bilayer.
It is a protein complex involved in cellular respiration.
3. What term is used to describe a molecule that inhibits an enzyme's activity?
Activator
Substrate
Cofactor
, Inhibitor
4. Describe the role of nitrogen in biomolecules and why it is essential for living
organisms.
Nitrogen is only found in lipids and carbohydrates.
Nitrogen is a key component of amino acids and nucleotides, which
are essential for protein synthesis and genetic material.
Nitrogen serves as a structural element in cell membranes.
Nitrogen is primarily involved in energy production within cells.
5. Often when drawing organic molecules, much of the molecule is depicted as
an 'R' and only the part of the molecule that can perform specific reactions is
shown. This group of atoms is referred to as a .
catalytic group
molecular group
functional group
reactive group
6. What is the term used to describe a molecule that inhibits enzyme activity by
binding to the active site?
Allosteric regulator
Cofactor
Non-competitive inhibitor
Competitive inhibitor
7. What are the primary types of molecules found in cellular membranes?
Phospholipids
Nucleic acids
, Carbohydrates
Proteins
8. What are two aspects of living organisms that biochemists study, as
mentioned in the module?
Metabolic pathways and cellular structures
Cellular respiration and photosynthesis
Nutrient absorption and waste elimination
Genetic sequences and environmental impacts
9. This element is the basis for all living matter on Earth.
Oxygen
Nitrogen
Hydrogen
Carbon
10. What term is used to describe the measure of heat content in a chemical
reaction?
Activation energy
Enthalpy
Gibbs free energy
Entropy
11. Which functional group is not found in DNA?
thiol
phosphate
, amine
none of the above
alcohol
12. What are the two key electron carriers produced during the breakdown of
biomolecules in energy production?
NADH and FADH2
ATP and ADP
CoA and ATP
NADPH and FADH
13. If a biochemist is investigating a new drug that affects cellular structures,
what other aspect of biochemistry might they need to consider?
The drug's impact on metabolic pathways
The drug's influence on environmental factors
The drug's effect on genetic sequences
The drug's role in nutrient absorption
14. The flow of matter through a metabolic pathway is called?
current
flux
degree of amplification
cascade effect
15. Which is not an element commonly found in biological macromolecules?
F. hydrogen
