1. Which of the following statements regarding the peptide in the diagram is/are

ID: 537811 • Letter: 1

Question

1. Which of the following statements regarding the peptide in the diagram is/are correct?

options:

This peptide contains 7 amide/peptide linkages.

This peptide contains both types of R groups required to form a salt bridge.

This peptide has a +2 charge at physiological pH.

This peptide forms 5 amino acids upon hydrolysis.

Two or more of the options above are correct.

2.The following are statements regarding structural features of the single subunit peptide in the diagram provided. Which statement is correct?

options:

a)Interaction "c" represents quaternary structure.

b)Interaction "e" is more likely to be sensitive to changes in pH than interaction "d".

c) Interaction "b" is the result of the reduction of two methionine amino acid residues.

d) The R groups in the region labeled "a" point to the interior of the alpha helix.

e)Interactions b, c, d and e are all noncovalent.

Interaction "e" is a hydrophilic interaction.

Interaction "b" is least susceptible to denaturation.

Interaction "d" is strongest when located near the surface of a protein where it can interact with water.

This peptide contains 7 amide/peptide linkages.

This peptide contains both types of R groups required to form a salt bridge.

This peptide has a +2 charge at physiological pH.

This peptide forms 5 amino acids upon hydrolysis.

Two or more of the options above are correct.

0 0 0 0 0 -0-0-0-0-1 0

Correct statement

(b) This peptide contain both type of R group to form a salt bridge.

That means Acidic and basic group, in acidic group aspartic acid amino acid and in basic group from lysine amino acid.

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