Chapter 21, Problem 21.69P

Interpretation Introduction

(a)

Interpretation:

The a-keratin and hemoglobin should be compared on the basis of secondary structure.

Concept Introduction:

The primary structure of a protein is the sequence of amino acids. The a-helix and β-sheet structures are the secondary structures. Similarly, tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence, these structures get changed during the denaturation of the protein.

Interpretation Introduction

(b)

Interpretation:

The a-keratin and hemoglobin should be compared on the basis of water solubility.

Concept Introduction:

The primary structure of a protein is the sequence of amino acids. The a-helix and β-sheet structures are the secondary structures. Similarly, tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence, these structures get changed during the denaturation of the protein.

Interpretation Introduction

(c)

Interpretation:

The a-keratin and hemoglobin should be compared on the basis of the function.

Concept Introduction:

The primary structure of a protein is the sequence of amino acids. The a-helix and β-sheet structures are the secondary structures. Similarly, tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence, these structures get changed during the denaturation of the protein.

Interpretation Introduction

(d)

Interpretation:

The a-keratin and hemoglobin should be compared on the basis of location in the body.

Concept Introduction:

The primary structure of protein is the sequence of amino acids. The a-helix and β-sheet structure are the secondary structures. Similarly tertiary and quaternary structures also have certain weak intermolecular forces. These structures have different intermolecular forces between peptide chains like hydrogen bonds, S-S bonds, etc. which get altered after heating or in the presence of certain chemicals. Hence these structures get changed during denaturation of the protein.