BCHM 4611 FINAL
EXAM NEWEST 2025
ACTUAL EXAM
COMPLETE
QUESTIONS AND
CORRECT DETAILED
ANSWERS (VERIFIED
ANSWERS)
|ALREADY GRADED
A+||BRAND NEW!!
,Protein minor role - ANSWER-Store energy
Nucleic acid major role - ANSWER-Encode
information
Nucleic acid minor roles - ANSWER-Carry out
metabolic reactions, support cellular structures
Polysaccharides major roles - ANSWER-Store
energy, support cellular structures
Polysaccharides minor role - ANSWER-Encode
information
Open system - ANSWER-Energy can be
transferred between the system and its
surroundings
Closed system - ANSWER-Only exchanges
energy with its surroundings, not matter
Isolated system - ANSWER-Does not exchange
energy or matter with its surroundings
,Gibbs free energy (G) - ANSWER-
Thermodynamic quantity whose change
indicates the spontaneity of a process. For
spontaneous/favorable processes, ΔG < 0,
whereas for a process at equilibrium, ΔG = 0
Enthalpy (H) - ANSWER-Heat content of a
biochemical system
Entropy (S) - ANSWER-Degree of randomness
or disorder of a system
Free energy change equation - ANSWER-ΔG =
ΔH - TΔS
Coupled reaction - ANSWER-Reactions that
occur in concert with each other; product of the
first reaction is a reactant for the second
reaction; ΔG values are added when reactions
are combined
Why is ΔG independent of path chosen? -
ANSWER-Depends only on the initial and final
states of the system, without regard to the
, specific chemical or mechanical work that
occurred in going from one state to the other
Oxidation - ANSWER-Loss of electrons through
the addition of oxygen or removal of hydrogen;
oxidation of carbon is thermodynamically
favorable so it can be coupled with otherwise
unfavorable processes
Catabolism - ANSWER-Breaking down
molecules, yielding energy; some of this free
energy may be conserved in the formation of
nucleotide triphosphates (NTPs) such as ATP
or reduced cofactors such as NADP+ or Q
Anabolism - ANSWER-Building complex
molecules at the expense of energy
H2O structure/geometry - ANSWER-Central
oxygen atom forms covalent bonds with two
hydrogen atoms, leaving two unshared pairs of
electrons; tetrahedral geometry
How does water's structure affect its properties
and interactions with other molecules? -
EXAM NEWEST 2025
ACTUAL EXAM
COMPLETE
QUESTIONS AND
CORRECT DETAILED
ANSWERS (VERIFIED
ANSWERS)
|ALREADY GRADED
A+||BRAND NEW!!
,Protein minor role - ANSWER-Store energy
Nucleic acid major role - ANSWER-Encode
information
Nucleic acid minor roles - ANSWER-Carry out
metabolic reactions, support cellular structures
Polysaccharides major roles - ANSWER-Store
energy, support cellular structures
Polysaccharides minor role - ANSWER-Encode
information
Open system - ANSWER-Energy can be
transferred between the system and its
surroundings
Closed system - ANSWER-Only exchanges
energy with its surroundings, not matter
Isolated system - ANSWER-Does not exchange
energy or matter with its surroundings
,Gibbs free energy (G) - ANSWER-
Thermodynamic quantity whose change
indicates the spontaneity of a process. For
spontaneous/favorable processes, ΔG < 0,
whereas for a process at equilibrium, ΔG = 0
Enthalpy (H) - ANSWER-Heat content of a
biochemical system
Entropy (S) - ANSWER-Degree of randomness
or disorder of a system
Free energy change equation - ANSWER-ΔG =
ΔH - TΔS
Coupled reaction - ANSWER-Reactions that
occur in concert with each other; product of the
first reaction is a reactant for the second
reaction; ΔG values are added when reactions
are combined
Why is ΔG independent of path chosen? -
ANSWER-Depends only on the initial and final
states of the system, without regard to the
, specific chemical or mechanical work that
occurred in going from one state to the other
Oxidation - ANSWER-Loss of electrons through
the addition of oxygen or removal of hydrogen;
oxidation of carbon is thermodynamically
favorable so it can be coupled with otherwise
unfavorable processes
Catabolism - ANSWER-Breaking down
molecules, yielding energy; some of this free
energy may be conserved in the formation of
nucleotide triphosphates (NTPs) such as ATP
or reduced cofactors such as NADP+ or Q
Anabolism - ANSWER-Building complex
molecules at the expense of energy
H2O structure/geometry - ANSWER-Central
oxygen atom forms covalent bonds with two
hydrogen atoms, leaving two unshared pairs of
electrons; tetrahedral geometry
How does water's structure affect its properties
and interactions with other molecules? -
