Question

Type of amino acids obtained by hydrolysis of proteins is:

• A. \(α\)- Amino acids
• B. \(β\)- Amino acids
• C. \(γ\)- Amino acids
• D. \(δ\)- Amino acids

Answer 1

The Correct Option is A

To determine the type of amino acids obtained through the hydrolysis of proteins, we need to understand the structure of amino acids and the process of protein hydrolysis. 

Proteins are composed of long chains of amino acids linked by peptide bonds. When these proteins undergo hydrolysis, the peptide bonds are broken, releasing individual amino acids.

The question presents four options:

• \(α\)-Amino acids
• \(β\)-Amino acids
• \(γ\)-Amino acids
• \(δ\)-Amino acids

The correct answer is \(α\)-Amino acids. This is because the amino acids that constitute proteins are \(α\)-amino acids, characterized by having the amino group (\(-\text{NH}_2\)) attached to the alpha (\(α\)) carbon, which is the first carbon adjacent to the carboxyl group (\(-\text{COOH}\)).

Each type of amino acid is named based on the position of the amino group relative to the carboxyl group:

• \(α\)-Amino acids: Amino group is on the first carbon (alpha carbon).
• \(β\)-Amino acids: Amino group is on the second carbon (beta carbon).
• \(γ\)-Amino acids: Amino group is on the third carbon (gamma carbon).
• \(δ\)-Amino acids: Amino group is on the fourth carbon (delta carbon).

Given that proteins are made up of \(α\)-amino acids, the hydrolysis of proteins primarily yields \(α\)-amino acids.

Therefore, the correct answer is:

• \(α\)-Amino acids

Answer 2

Proteins are natural polymers composed of α-amino acids, which are connected by peptide linkages. Upon acidic hydrolysis, proteins break down into α-amino acids due to the cleavage of these peptide bonds.
So, the correct answer is option 1: \(α\)- Amino acids.