BioChem 384: EXAM 1 Questions with positive
complete solution 2025/2026 B. The
1. Fatty acids are amphipathic, meaning that change in
free
within the molecular structure,
energy,
delta G,
A. One end is polar and the other is non-polar is
B. Both ends interact with water, they are negative
both hy- drophilic
C. Both ends repel from water, they are
both hy- drophobic
D. One end is negatively charged and the other
end is positively charged
2. High-throughout DNA sequencing and
bioinformat- ics have greatly facilitated our
ability to study evo- lutionary history. Which
of the following is correctly defined?
A. A human receptor gene and a mosquito
receptor gene are highly conserved and are
called paralogs
B. Glucose-6-phosphate gene sequences from
a hu- man and a chimpanzee are highly
conserved and are called orthologs
C. Glucose-6-phosphate gene sequences from
a hu- man and a chimpanzee are highly
conserved and are called paralogs
D. Steroid receptor gene and globin receptor
gene sequences in humans are highly
conserved and are called orthologs
3. A reaction is always spontaneous if
A. The change in free energy, delta G, is
,A. One end is polar and the other is non-polar
B. Glucose-6-phosphate gene sequences from a human and a
chimpanzee are highly conserved and are called orthologs
B. The change in free en- ergy, delta G, is negative
, BioChem 384: EXAM 1
Study online at https://quizlet.com/_8m87ry
C. The change in enthalpy is zero
D. Entropy is increased
E. Enthalpy is reduced
4. Hydrogen bond acceptor all electronegative
with lone pair
electrons and not
bonded to hydrogen
The atom, ion, or
molecule component
of a hydrogen bond
which does not sup-
ply the bridging
(shared) hydrogen
atom.
5. Hydrogen bond donors all bound to
hydrogen, in
biochemistry either N
or O atoms
N-H, O-H (NOT C-H)
Strong dipole
moment and partial
positive charge on the
hydrogen
6. The delta G of ATP hydrolysis is -30.5 kJ/mol. B. Dihydroxy
Which of the following reactions are not acetone
spontaneous and could be driven by being phosphate
couple to hydrolysis of ATP (one ATP molecule (DHAP) <—-
per individual reaction)? > glycer-
aldehyde 3
A. Fructose - 6- phosphate <——> fructose + phosphate
Pi (-15.9 kJ/mol)
, (GAP) (7.5 kJ/mol) B and D
C. Pyruvate + Pi <—-> phosphoenolpyruvate
(+31.5 kJ/mol)
complete solution 2025/2026 B. The
1. Fatty acids are amphipathic, meaning that change in
free
within the molecular structure,
energy,
delta G,
A. One end is polar and the other is non-polar is
B. Both ends interact with water, they are negative
both hy- drophilic
C. Both ends repel from water, they are
both hy- drophobic
D. One end is negatively charged and the other
end is positively charged
2. High-throughout DNA sequencing and
bioinformat- ics have greatly facilitated our
ability to study evo- lutionary history. Which
of the following is correctly defined?
A. A human receptor gene and a mosquito
receptor gene are highly conserved and are
called paralogs
B. Glucose-6-phosphate gene sequences from
a hu- man and a chimpanzee are highly
conserved and are called orthologs
C. Glucose-6-phosphate gene sequences from
a hu- man and a chimpanzee are highly
conserved and are called paralogs
D. Steroid receptor gene and globin receptor
gene sequences in humans are highly
conserved and are called orthologs
3. A reaction is always spontaneous if
A. The change in free energy, delta G, is
,A. One end is polar and the other is non-polar
B. Glucose-6-phosphate gene sequences from a human and a
chimpanzee are highly conserved and are called orthologs
B. The change in free en- ergy, delta G, is negative
, BioChem 384: EXAM 1
Study online at https://quizlet.com/_8m87ry
C. The change in enthalpy is zero
D. Entropy is increased
E. Enthalpy is reduced
4. Hydrogen bond acceptor all electronegative
with lone pair
electrons and not
bonded to hydrogen
The atom, ion, or
molecule component
of a hydrogen bond
which does not sup-
ply the bridging
(shared) hydrogen
atom.
5. Hydrogen bond donors all bound to
hydrogen, in
biochemistry either N
or O atoms
N-H, O-H (NOT C-H)
Strong dipole
moment and partial
positive charge on the
hydrogen
6. The delta G of ATP hydrolysis is -30.5 kJ/mol. B. Dihydroxy
Which of the following reactions are not acetone
spontaneous and could be driven by being phosphate
couple to hydrolysis of ATP (one ATP molecule (DHAP) <—-
per individual reaction)? > glycer-
aldehyde 3
A. Fructose - 6- phosphate <——> fructose + phosphate
Pi (-15.9 kJ/mol)
, (GAP) (7.5 kJ/mol) B and D
C. Pyruvate + Pi <—-> phosphoenolpyruvate
(+31.5 kJ/mol)
