. Statements: (1) The major force responsible for protein secondary structure is hydrogen bonding. (2) Amino acids found in prot

Answer:

a. All three claims are accurate.

Explanation:

The principal force that drives protein secondary structure arises from hydrogen bonding. The secondary structure is characterized by HYDROGEN BONDS that form between the amino group's hydrogen and the carboxyl group's oxygen atoms in the peptide backbone.

Proteins are composed predominantly of L-isomers of amino acids. All naturally occurring amino acids exist in their L-isomer forms.

Conjugated proteins are always associated with one or more prosthetic groups. Most proteins consist solely of amino acids and lack additional chemical groups, classified as simple proteins.

Some proteins can undergo hydrolysis, producing additional chemical components alongside amino acids; these are considered conjugated proteins. The non-amino segment of a conjugated protein is referred to as its prosthetic group, and in the absence of this group, the protein reverts to a simple form. Many prosthetic groups derive from vitamins.

Answer:

a. All three claims are correct.

Explanation:

1. Hydrogen bonding serves as a major stabilizing element for protein structures, whether secondary or tertiary. It links a series of polypeptide chains through hydrophobic interactions.

2. Predominantly, amino acids within proteins appear as L (Laevorotatory)-isomers, forming the foundation of proteins. These L-isomers are critical for the biological functionality of tissues and cells.

3. A conjugated protein includes a non-amino acid component known as prosthetic groups. These components often come from vitamins that are necessary for the proper functioning of certain proteins.

Hence, it is true that all three claims hold.