CHEM 210 Biochemistry Module 3 Exam
Portage Learning | Questions and Verified
Answers |
100% Guarantee Pass | 2025/2026
Question 1
pts
True or False: The amino acids serine and threonine both contain sulfur atoms.
FALSE
Question 2
pts
True or False: The following secondary structure shown below is an example of a
betaturn.
FALSE
Question 3
pts
True or False. The side chain of phenylalanine is bonded to the backbone nitrogen
atom.
FALSE
, Question 4
pts
True or False: The name of the molecule that binds to an enzyme is called the
holoenzyme.
FALSE
Question 5
pts
True or False: An inhibitor that binds at the active site is a coenzyme.
FALSE
Question 6
pts
Which amino acids differ by only one atom?
Ser and Thr
Leu and Ile
Ala and Ser
Asp and Asn
Ser and Cys
SER AND CYS
Question 7
pts
The formation of a peptide bond between two amino acids is an example of a(n) _____
reaction.
Cleavage
Condensation
Group transfer
Isomerization
Double-bond breaking
, CONDENSATION
Question 8
pts
The peptide Ala-Glu-Gly-Ala-Leu has ______ .
A disulfide bond
Five peptide bonds
Four peptide bonds
A proline residue
No C-terminal
FOUR PEPTIDE BOND
Question 9
pts
Formally, when there are 100 or more amino acids are covalently linked together that is called
a _________.
Polypeptide
Oligopeptide
Peptide
Protein
Polyprotein
PROTEIN
Question 10
pts
What unit is used by biochemists to indicate the mass of a protein?
Question 11
pts
All of the 20 standard amino acids contain an R-group that is attached to the:
A) α carbon
B) Carboxyl group
Portage Learning | Questions and Verified
Answers |
100% Guarantee Pass | 2025/2026
Question 1
pts
True or False: The amino acids serine and threonine both contain sulfur atoms.
FALSE
Question 2
pts
True or False: The following secondary structure shown below is an example of a
betaturn.
FALSE
Question 3
pts
True or False. The side chain of phenylalanine is bonded to the backbone nitrogen
atom.
FALSE
, Question 4
pts
True or False: The name of the molecule that binds to an enzyme is called the
holoenzyme.
FALSE
Question 5
pts
True or False: An inhibitor that binds at the active site is a coenzyme.
FALSE
Question 6
pts
Which amino acids differ by only one atom?
Ser and Thr
Leu and Ile
Ala and Ser
Asp and Asn
Ser and Cys
SER AND CYS
Question 7
pts
The formation of a peptide bond between two amino acids is an example of a(n) _____
reaction.
Cleavage
Condensation
Group transfer
Isomerization
Double-bond breaking
, CONDENSATION
Question 8
pts
The peptide Ala-Glu-Gly-Ala-Leu has ______ .
A disulfide bond
Five peptide bonds
Four peptide bonds
A proline residue
No C-terminal
FOUR PEPTIDE BOND
Question 9
pts
Formally, when there are 100 or more amino acids are covalently linked together that is called
a _________.
Polypeptide
Oligopeptide
Peptide
Protein
Polyprotein
PROTEIN
Question 10
pts
What unit is used by biochemists to indicate the mass of a protein?
Question 11
pts
All of the 20 standard amino acids contain an R-group that is attached to the:
A) α carbon
B) Carboxyl group
