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Biochemistry 1st Edition by Roger L. Miesfeld, Megan M. McEvoy Test Bank
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Biochemistry 1st Edition by Roger L. Miesfeld, Megan M. McEvoy Test Bank
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,,5. Look at the bond energies O-H, N-H, and P-H in the table below. O-H is the hardest bond to break
because it has the
a. greatest difference in relative affinities of the two atoms for electrons.
b. smallest difference in relative affinities of the two atoms for electrons.
c. smallest difference in atomic size.
d. largest difference in atomic size.
ANS: A DIF: Medium REF: 1.2
OBJ: 1.2.b. Identify the most abundant functional groups found in biomolecules.
MSC: Understanding
6. Given that methane (CH4) has a bond angle of and ethylene (C2H2) has a bond angle of
, what is the correct bond angle for acetylene (C2H2)?
a.
b.
c.
d.
ANS: C DIF: Medium REF: 1.2
OBJ: 1.2.b. Identify the most abundant functional groups found in biomolecules.
MSC: Applying
7. Amino acids are the building blocks for which biomolecule(s)?
a. proteins
b. DNA
c. carbohydrates
d. micelles
ANS: A DIF: Easy REF: 1.2
OBJ: 1.2.c. Name the four major classes of biomolecules and the primary cellular functions
associated with each. MSC: Remembering
8. The __________ differentiates amino acids from one another.
a. number of silane groups
b. number of phosphoryl groups
c. side chains attached to the central carbon
d. number of hydroxyl groups
ANS: C DIF: Medium REF: 1.2
, OBJ: 1.2.c. Name the four major classes of biomolecules and the primary cellular functions
associated with each. MSC: Understanding
9. A nucleotide consists of which of the following?
a. nitrogenous base, four-membered sugar and phosphate groups
b. phosphate base, four-membered sugar and sulfate groups
c. nitrogenous base, five-membered sugar and phosphate groups
d. carboxylic acid, four-membered sugar and phosphate groups
ANS: C DIF: Medium REF: 1.2
OBJ: 1.2.c. Name the four major classes of biomolecules and the primary cellular functions
associated with each. MSC: Remembering
10. Simple sugars are made of which of the following elements?
a. carbon, sulfur, and hydrogen
b. carbon, oxygen, and phosphate
c. carbon, oxygen, and helium
d. carbon, oxygen, and hydrogen
ANS: D DIF: Easy REF: 1.2
OBJ: 1.2.c. Name the four major classes of biomolecules and the primary cellular functions
associated with each. MSC: Remembering
11. If energy in the form of ATP is required to make a polymeric macromolecule, which of the
following will happen if there is no ATP available?
a. The rate of polymer increases.
b. The polymer is broken down to release ATP.
c. The polymer continues to be made at the same rate.
d. The enzyme degrades to release ATP.
ANS: B DIF: Medium REF: 1.2
OBJ: 1.2.e. Explain the role of metabolic pathways in living systems.
MSC: Understanding
12. Why are fewer polypeptide sequences encountered biologically than are theoretically possible?
a. There is no way to make all the theoretical possibilities.
b. The phosphodiester linkages don’t allow for all the possibilities.
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