WGU Biochemistry C624 Questions and
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Primary structure consists of the order of ______ in a protein. These are
held together with ______ bonds that are formed by a ______
reaction.
Ans: Amino Acids, Peptide, hydration
Several types of side chain interactions stabilize the tertiary structure
of proteins, including which of the following?
Ans: Ion pairs, hydrophobic interactions, hydrogen bonds, disulfide bonds
Which of the following statements is true about the secondary
structure of proteins? a. It includes alpha helices as a common form.
b. It involves hydrogen bonding between the backbone atoms.
c. All of these.
d. It includes beta pleated sheets as a common form.
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Ans: c. All of these.
In order to fulfill their function, proteins must fold in proper, three-
dimensional conformations. Which one of the following molecules,
available in a cell, is likely to help a protein fold properly?
Ans: Chaperone
Which of the following is true about a mis-folded protein? a. All of
these.
b. It can be the result of denaturation.
c. It can cause protein aggregation.
d. It will lose its normal function.
e. It can be degraded by the cell.
Ans: Which of the following is true about a mis-folded protein?
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Ans: Which of the following amino acids would you expect to find in the
interior of a protein most often?
Ans: Which of the following amino acids would you expect to find most
often on the exterior surface of a protein?
question has 2 answers
Ans: Which of the following amino acids would you expect to find most
often on the exterior surface of a protein?
B - Carboxylic acid! Peptide bonds are formed between the amino
group (A) and carboxylic acid group (B) of amino acids.
A - Amino group! Peptide bonds are formed between the amino
group (A) and carboxylic acid group (B) of amino acids.
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Ans: Which part(s) of the amino acid below can be involved in peptide
bond formation?
Which part(s) of the amino acid below contributes to tertiary
structure stabilization?
a. C - Alpha Carbon
b. B - Carboxylic Acid
c. A - Amino group
d. D - R group
Ans: d. D - R group Tertiary structure is stabilized primarily by interactions
between different R groups.
Drag the name of the protein structure level to the part of the amino
acid that primarily contributes to that structure level. Primary
Structure
Secondary Structure
Tertiary Structure