Amino Acids and Proteins

An amino acid is a repeating monomer of a protein, containing an amino group and a carboxylic acid group. Amino acids in a protein are held by peptide bonds, and human proteins are made of L-α-amino acids, with only 20 standard amino acids.

The general structure of an α-amino acid consists of an amino group (NH2), a carboxylic acid group (COOH), and a side chain group (R) attached to the central carbon (Cα).

Amino acids are classified based on their chemical nature, nutritional essentiality, and metabolic products/fate.

<p>Proteins are classified based on their function and chemical nature (composition). They can also be classified based on their shape.</p> Signup and view all the answers

<p>Standard amino acids are the amino acids found in proteins, genetically coded, and totaling 20.</p> Signup and view all the answers

<p>The learning objectives related to the classification of amino acids discussed by Dr. Chandrika D Nayak include the classification based on chemical nature, nutritional essentiality, metabolic products/fate.</p> Signup and view all the answers

<p>The general structure of an alpha-amino acid is defined by the presence of an amino group (NH2), a carboxylic acid group (COOH), and a side chain group (R) attached to the central carbon (Cα).</p> Signup and view all the answers

<p>According to Dr. Chandrika D Nayak, an amino acid is the repeating monomer of a protein, containing an amino group and a carboxylic acid group. Amino acids in a protein are held by peptide bond, and human proteins are made of L-α-amino acids, with only 20 being called standard amino acids.</p> Signup and view all the answers

<p>Glycine is structured with an amino group (NH2), a carboxylic acid group (COOH), and a hydrogen (H) as the side chain group. Alanine is structured with an amino group (NH2), a carboxylic acid group (COOH), and a methyl (CH3) group as the side chain group.</p> Signup and view all the answers

<p>Standard amino acids are the amino acids found in proteins, genetically coded, and totaling 20 in number.</p> Signup and view all the answers