Test Bank for Lehninger Principles of
Biochemistry | Verified Questions &
Answers | Graded A+
‣ Which of the following structures are components of all living cells?
A. Ribosomes
B. Nuclear membrane
C. Plasma membrane
D. Cytoplasm
E. 1, 3 and 4 -✓✓E. 1, 3 and 4
‣ Amino acids are the basic building blocks of proteins and nucleosides
are the monomeric units of nucleic acids. Do you agree?
A. Yes
B. N -✓✓A. yes
‣ Which of the following combination of elements make up more than
99% of the mass of most cells?
A. H, N, O, P
B. H, N, O, C
C. H, C, N, P
D. C, N, O, P -✓✓B. H, N, O, C
‣ Which of the following is a reflection of the total energy change in a
chemical reaction, a measure of the number and kinds of bonds that are
made and broken?
A. ΔG
B. ΔH
C. ΔS
D. ΔE
E. ΔT -✓✓B. ΔH
, ‣ Which is the proper definition of equilibrium, with respect to a
biochemical reaction?
A. The forward reaction is favored over the reverse reaction, and it
proceeds.
B. There is no net change in reactant and product concentrations.
C. There is a constant rate at which reactant is converted to product.
D. The free-energy change for the reaction is negative. E. The entropy of
the reaction is negative and the enthalpy of the reaction is positive. -✓✓
‣ For the reaction below A + B <-> C If you add a catalyst to this
reaction you will have more C at equilibrium True or False? -✓✓False
‣ Which of the following is a reflection of the total energy change in a
chemical reaction, a measure of the number and kinds of bonds that are
made and broken?
A. ΔG
B. ΔH
C. ΔS
D. ΔE
E. ΔT -✓✓B. ΔH
‣ Which of the following atoms does not commonly form hydrogen
bonds between or within biological molecules?
A. Oxygen
B. Hydrogen
C. Carbon
D. Nitrogen
E. All four atoms above commonly form hydrogen bonds. -✓✓C.
Carbon
Biochemistry | Verified Questions &
Answers | Graded A+
‣ Which of the following structures are components of all living cells?
A. Ribosomes
B. Nuclear membrane
C. Plasma membrane
D. Cytoplasm
E. 1, 3 and 4 -✓✓E. 1, 3 and 4
‣ Amino acids are the basic building blocks of proteins and nucleosides
are the monomeric units of nucleic acids. Do you agree?
A. Yes
B. N -✓✓A. yes
‣ Which of the following combination of elements make up more than
99% of the mass of most cells?
A. H, N, O, P
B. H, N, O, C
C. H, C, N, P
D. C, N, O, P -✓✓B. H, N, O, C
‣ Which of the following is a reflection of the total energy change in a
chemical reaction, a measure of the number and kinds of bonds that are
made and broken?
A. ΔG
B. ΔH
C. ΔS
D. ΔE
E. ΔT -✓✓B. ΔH
, ‣ Which is the proper definition of equilibrium, with respect to a
biochemical reaction?
A. The forward reaction is favored over the reverse reaction, and it
proceeds.
B. There is no net change in reactant and product concentrations.
C. There is a constant rate at which reactant is converted to product.
D. The free-energy change for the reaction is negative. E. The entropy of
the reaction is negative and the enthalpy of the reaction is positive. -✓✓
‣ For the reaction below A + B <-> C If you add a catalyst to this
reaction you will have more C at equilibrium True or False? -✓✓False
‣ Which of the following is a reflection of the total energy change in a
chemical reaction, a measure of the number and kinds of bonds that are
made and broken?
A. ΔG
B. ΔH
C. ΔS
D. ΔE
E. ΔT -✓✓B. ΔH
‣ Which of the following atoms does not commonly form hydrogen
bonds between or within biological molecules?
A. Oxygen
B. Hydrogen
C. Carbon
D. Nitrogen
E. All four atoms above commonly form hydrogen bonds. -✓✓C.
Carbon
