Question 1

Every third residue in the protein collagen is _______________.

Accepted Answer

The answer of Every third residue in the protein collagen...

Question 2

A protein is considered to be _______________ when it is converted into a randomly coiled structure without its normal activity.

Accepted Answer

The answer of A protein is considered to be _______________...

Question 3

Why is the peptide bond planar?

Accepted Answer

A)  Bulky side chains prevent free rotation around the bond. 
B)  It exhibits partial double-bond character, preventing rotation. 
C)  Hydrogen bonding between the NH and C=O groups limits movement. 
D)  None of the above. 
E)  All of the above. 
A)  Bulky side chains prevent free rotation around the bond. 
B)  It exhibits partial double-bond character, preventing rotation. 
C)  Hydrogen bonding between the NH and C=O groups limits movement. 
D)  None of the above. 
E)  All of the above.

Question 4

Choose the correct answer from the list below. Not all of the answers will be used.
-The plot that allows one to investigate the likely orientation of certain amino acid pairs is called the ____________.

Accepted Answer

A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine 
A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine

Question 5

Collagen contains _______________, a modified amino acid.

Accepted Answer

The answer of Collagen contains _______________, a modified amino acid....

Question 6

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: Codes for the sequence of amino acids.

Accepted Answer

A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine 
A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine

Question 7

Choose the correct answer from the list below. Not all of the answers will be used.
-When a peptide bond is formed, a(n) ____________molecule is also made.

Accepted Answer

A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine 
A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine

Question 8

The _______________ β-sheet structure occurs when the two strands are oriented in opposite directions (N →C).

Accepted Answer

The answer of The _______________ β-sheet structure occurs when the...

Question 9

_______________ is a fibrous protein and is the primary component of wool and hair.

Accepted Answer

The answer of _______________ is a fibrous protein and is...

Question 10

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: Compact regions that may be connected by a flexible segment of polypeptide chain.

Accepted Answer

A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine 
A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine

Question 11

Choose the correct answer from the list below. Not all of the answers will be used.
-Changes in ____________ create amyloid fibers which are insoluble and are the source of mad cow disease, and Alzheimer's, and Parkinson's diseases.

Accepted Answer

A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine 
A) amino 
B) water 
C) protons 
D) DNA 
E) secondary structure
F)tertiary structure
G)Ramachandran
H)RNA
I)domain
J)cystine
K)proline
L)Sanger
M)D amino acids
N)cysteine

Question 12

The folding of a protein into its native shape can best be described as:

Accepted Answer

A)  a random event. 
B)  a random event catalyzed by ribosome proteins to maintain a low energy structure. 
C)  a series of controlled folds with a few random-shaped structures. 
D)  a series of repeatable random events where the lowest energy structure is maintained. 
E)  an event where the highest possible energy state is stabilized with discrete folding intermediates. 
A)  a random event. 
B)  a random event catalyzed by ribosome proteins to maintain a low energy structure. 
C)  a series of controlled folds with a few random-shaped structures. 
D)  a series of repeatable random events where the lowest energy structure is maintained. 
E)  an event where the highest possible energy state is stabilized with discrete folding intermediates.

Question 13

What are prions?

Accepted Answer

Prions are proteins that can assume (aft

Question 14

The _______________ of a disulfide bridge results in a separation of two protein chains.

Accepted Answer

The answer of The _______________ of a disulfide bridge results...

Question 15

What determines a protein's function?

Accepted Answer

A)  its structure 
B)  its gene sequence 
C)  N-terminal amino acids 
D)  None of the above. 
E)  All of the above. 
A)  its structure 
B)  its gene sequence 
C)  N-terminal amino acids 
D)  None of the above. 
E)  All of the above.

Question 16

Which of the following amino acid residues would most likely be buried in the interior of a water-soluble, globular protein?

Accepted Answer

A)  Aspartate 
B)  Serine 
C)  Phenylalanine 
D)  Lysine 
E)  Glutamine 
A)  Aspartate 
B)  Serine 
C)  Phenylalanine 
D)  Lysine 
E)  Glutamine

Question 17

What can you deduce from this information?

Accepted Answer

The sequence is likely an alpha helix. T

Question 18

The _______________ indicates the left- or right-handedness of an alpha helix.

Accepted Answer

The answer of The _______________ indicates the left- or right-handedness...

Question 19

The peptide bond is also known as a(n) _______________.

Accepted Answer

The answer of The peptide bond is also known as...

Question 20

The secondary structure that is stabilized by CO and NH hydrogen bonding within the peptide chain is the _______________.

Accepted Answer

The answer of The secondary structure that is stabilized by...

Exam 4: Protein Three-Dimensional Structure

Every third residue in the protein collagen is _______________.

A protein is considered to be _______________ when it is converted into a randomly coiled structure without its normal activity.

Why is the peptide bond planar?

Choose the correct answer from the list below. Not all of the answers will be used. -The plot that allows one to investigate the likely orientation of certain amino acid pairs is called the ____________.

Collagen contains _______________, a modified amino acid.

Choose the correct answer from the list below. Not all of the answers will be used. -____________: Codes for the sequence of amino acids.

Choose the correct answer from the list below. Not all of the answers will be used. -When a peptide bond is formed, a(n) ____________molecule is also made.

The _______________ β-sheet structure occurs when the two strands are oriented in opposite directions (N →C).

_______________ is a fibrous protein and is the primary component of wool and hair.

Choose the correct answer from the list below. Not all of the answers will be used. -____________: Compact regions that may be connected by a flexible segment of polypeptide chain.

Choose the correct answer from the list below. Not all of the answers will be used. -Changes in ____________ create amyloid fibers which are insoluble and are the source of mad cow disease, and Alzheimer's, and Parkinson's diseases.

The folding of a protein into its native shape can best be described as:

What are prions?

The _______________ of a disulfide bridge results in a separation of two protein chains.

What determines a protein's function?

Which of the following amino acid residues would most likely be buried in the interior of a water-soluble, globular protein?

What can you deduce from this information?

The _______________ indicates the left- or right-handedness of an alpha helix.

The peptide bond is also known as a(n) _______________.

The secondary structure that is stabilized by CO and NH hydrogen bonding within the peptide chain is the _______________.

Biochemistry and the Unity of Life

Water, Weak Bonds, and the Generation of Order Out of Chaos

Amino Acids

Techniques in Protein Biochemistry

Basic Concepts of Enzyme Action

Kinetics and Regulation

Mechanisms and Inhibitors

Hemoglobin: an Allosteric Protein

Carbohydrates

Lipids

Membrane Structure and Function

Signal Transduction Pathways

Digestion: Turning a Meal Into Cellular Biochemicals

Metabolism: Basic Concepts and Design

Glycolysis

Gluconeogenesis

Preparation for the Cycle

Harvesting Electrons From the Cycle

The Electron Transport Chain

The Proton-Motive Force

The Light Reactions

The Calvin Cycle

Glycogen Degradation

Glycogen Synthesis

The Pentose Phosphate Pathway

Fatty Acid Degredation

Fatty Acid Synthesis

Lipid Synthesis

Amino Acid Degradation and the Urea Cycle

Amino Acids Synthesis

Nucleotide Metabolism

The Structure of Informational Macromolecules: Dna and Rna

DNA Replication

DNA Repair and Recombination

RNA Synthesis and Regulation in Prokaryotes

Gene Expression in Eukaryotes

RNA Processing in Eukaryotes

The Genetic Code

The Mechanism of Protein Synthesis

Recombinant DNA Techniques

Filters