Question 1

What can you deduce from this information?

Accepted Answer

The sequence is likely an alpha helix. T...

Question 2

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 structureF) tertiary structureG) RamachandranH) RNAI) domainJ) cystineK) prolineL) SangerM) D amino acidsN) cysteineO) A) and I)
P) A) and D)

Question 3

Collagen contains _______________, a modified amino acid.

Accepted Answer

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

Question 4

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.F) None of the above
G) C) and E)

Question 5

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

Accepted Answer

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

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 structureF) tertiary structureG) RamachandranH) RNAI) domainJ) cystineK) prolineL) SangerM) D amino acidsN) cysteineO) F) and L)
P) A) and H)

Question 7

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

Accepted Answer

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

Question 8

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)   GlutamineF) A) and E)
G) A) and C)

Question 9

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 10

What are prions?

Accepted Answer

Prions are proteins that can assume (aft...

Question 11

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.F) A) and C)
G) B) and D)

Question 12

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 13

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.F) All of the above
G) C) and D)

Question 14

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 structureF) tertiary structureG) RamachandranH) RNAI) domainJ) cystineK) prolineL) SangerM) D amino acidsN) cysteineO) G) and H)
P) E) and J)

Question 15

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 16

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...

Question 17

_______________ 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 18

Every third residue in the protein collagen is _______________.

Accepted Answer

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

Question 19

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 structureF) tertiary structureG) RamachandranH) RNAI) domainJ) cystineK) prolineL) SangerM) D amino acidsN) cysteineO) A) and I)
P) E) and M)

Question 20

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 structureF) tertiary structureG) RamachandranH) RNAI) domainJ) cystineK) prolineL) SangerM) D amino acidsN) cysteineO) D) and F)
P) F) and N)

Exam 4: Protein Three-Dimensional Structure

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.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What can you deduce from this information?

Correct AnswerverifiedThe sequence is likely an alpha helix. T...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Every third residue in the protein collagen is _______________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What determines a protein's function?

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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 ____________.

Correct AnswerverifiedShow Answer

What are prions?

Correct AnswerverifiedPrions are proteins that can assume (aft...View AnswerShow Answer

Why is the peptide bond planar?

Correct AnswerverifiedShow Answer

Collagen contains _______________, a modified amino acid.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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The sequence is likely an alpha helix. T...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Prions are proteins that can assume (aft...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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