A. Amino acids found in the living systems are generally in the D-form B. The R-group attached to alfa carbon atom of amino acids are unique for each amino acids. C. Of the 20 essential amino acids, glycine is the only amino acid which is achiral. D. Ions of heavy metals Hg2+ or Pb2+ denature proteins by combining with the amino groups. E. Denaturation of protein involves the breakdown of secondary, tertiary and quaternary structure. F. Cysteine is the only amino acid that can form a disulfide bridge. G. Both the poly saccharides and proteins are polymers. H. Hydrogen bonding is responsible for the secondary structure of Proteins. I. When proteins are hydrolyzed, smaller peptides and amino acids are produced. J. When simple lipids are hydrolyzed glycerol an alcohol as well as fatty acids and their salts are produced.
Neutral Amino Acids
Amino acids which do not have any charge on them are neutral amino acids.
Globular Protein
The globular proteins refer to the shape of protein specifically spherical in nature apart from spherical form fibrous, disordered and membrane-bound proteins exist. These globular proteins are miscible in water and form a colloidal solution rather than other types which might not exhibit solubility. Many classes of the fold are found in globular proteins, which render them a sphere shape. Globular fold containing proteins usually are referred to by the term globin.
Dimer
Dimers are basic organic compounds, which are derivates of oligomers. It is formed by the combination of two monomers which could potentially be strong or weak and in most cases covalent or intermolecular in nature. Identical monomers are called homodimer, the non-identical dimers are called heterodimer. The method by which dimers are formed is known as “dimerization”.
Dipeptide
A dipeptide is considered a mixture of two distinct amino acids. Since the amino acids are distinct, based on their composition, two dipeptide's isomers can be produced. Various dipeptides are biologically essential and are therefore crucial to industry.
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