Regarding the structure of a protein, indicate the TRUE alternative: a) The tertiary structure is constituted only by the dipole-dipole type attractions between the polypeptide chains. b) The α-helix and β-laminar forms belong to the primary structure and are stable thanks to hydrogen bond-type interactions. c) All proteins have a quaternary structure and denaturation always affects this structural level. d) Disulfide bonds are the only ones responsible for the secondary structure. e) According to their shape, proteins are classified as fibrous and globular.
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.
Regarding the structure of a protein, indicate the TRUE alternative:
a) The tertiary structure is constituted only by the dipole-dipole type attractions between the polypeptide chains.
b) The α-helix and β-laminar forms belong to the primary structure and are stable thanks to hydrogen bond-type interactions.
c) All proteins have a quaternary structure and denaturation always affects this structural level.
d) Disulfide bonds are the only ones responsible for the secondary structure.
e) According to their shape, proteins are classified as fibrous and globular.
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