BCHM: Exam 2 study guide Questions and
Answers (Solved Papers)
Protein biosynthesis uses only L-amino acids - Correct Answers
✅TRUE
C
on
All amino acids have a chiral α-carbon EXCEPT ________. - Correct
fid
Answers ✅glycine
en
tia
At pH=0, the net charge on a polypeptide will be negative. -
l
Correct Answers ✅FALSE
co
nt
ac
An amide bond between the α-carboxylic acid group of one amino
acid and the α-amino group
tB
ria
on another is called a ________. - Correct Answers ✅peptide bond
nr
ey
The chemical ________ can cleave amide bonds on the C-terminal
an
side of methionine
y@
residues. - Correct Answers ✅cyanogen bromide
gm
ai
Most proteins have blocked amino and carboxyl terminals. -
l.c
Correct Answers ✅FALSE
om
When referring to the amino acid sequences of proteins,
sequence homology is the same as
, BCHM: Exam 2 study guide Questions and
Answers (Solved Papers)
sequence similarity. - Correct Answers ✅FALSE
Several homologous proteins can be aligned to provide a ________
C
on
sequence. - Correct Answers ✅consensus
fid
en
Applications of mass spectrometry include:
tia
A) determination of the mass of a protein.
l
B) determining the primary structure of proteins.
co
nt
C) detection of post-translational modifications on proteins.
ac
D) A and B.
tB
E) A, B, and C. - Correct Answers ✅E
ria
nr
ey
________ chromatography is used to separate proteins based on
an
their surface charge. - Correct Answers ✅Ion exchange
y@
gm
In considering protein secondary structure which of the following
is INCORRECT?
ai
l.c
A) An α helix repeats after 18 residues and has 3.6 residues per
om
turn.
B) A network of main-chain hydrogen bonds connect β strands in
a β sheet.
Answers (Solved Papers)
Protein biosynthesis uses only L-amino acids - Correct Answers
✅TRUE
C
on
All amino acids have a chiral α-carbon EXCEPT ________. - Correct
fid
Answers ✅glycine
en
tia
At pH=0, the net charge on a polypeptide will be negative. -
l
Correct Answers ✅FALSE
co
nt
ac
An amide bond between the α-carboxylic acid group of one amino
acid and the α-amino group
tB
ria
on another is called a ________. - Correct Answers ✅peptide bond
nr
ey
The chemical ________ can cleave amide bonds on the C-terminal
an
side of methionine
y@
residues. - Correct Answers ✅cyanogen bromide
gm
ai
Most proteins have blocked amino and carboxyl terminals. -
l.c
Correct Answers ✅FALSE
om
When referring to the amino acid sequences of proteins,
sequence homology is the same as
, BCHM: Exam 2 study guide Questions and
Answers (Solved Papers)
sequence similarity. - Correct Answers ✅FALSE
Several homologous proteins can be aligned to provide a ________
C
on
sequence. - Correct Answers ✅consensus
fid
en
Applications of mass spectrometry include:
tia
A) determination of the mass of a protein.
l
B) determining the primary structure of proteins.
co
nt
C) detection of post-translational modifications on proteins.
ac
D) A and B.
tB
E) A, B, and C. - Correct Answers ✅E
ria
nr
ey
________ chromatography is used to separate proteins based on
an
their surface charge. - Correct Answers ✅Ion exchange
y@
gm
In considering protein secondary structure which of the following
is INCORRECT?
ai
l.c
A) An α helix repeats after 18 residues and has 3.6 residues per
om
turn.
B) A network of main-chain hydrogen bonds connect β strands in
a β sheet.
