LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The folding and coiling into a three dimensional structure based on interactions between R-groups is known as the ____ structure of a protein.
A
primary
B
secondary
C
tertiary
D
quaternary
Explanation: 

Detailed explanation-1: -The overall three-dimensional structure of a polypeptide is called its tertiary structure. The tertiary structure is primarily due to interactions between the R groups of the amino acids that make up the protein.

Detailed explanation-2: -When protein folding takes place (in an aqueous compartment), the hydrophobic R groups of nonpolar amino acids will cluster together in the interior of the protein, whereas the hydrophilic R groups lay on the outside. These types of interactions are known as hydrophobic interactions.

Detailed explanation-3: -The full three-dimensional organization of a polypeptide chain is sometimes referred to as the protein’s tertiary structure, and if a particular protein molecule is formed as a complex of more than one polypeptide chain, the complete structure is designated as the quaternary structure.

Detailed explanation-4: -The tertiary structure of a protein refers to the overall three-dimensional arrangement of its polypeptide chain in space. It is generally stabilized by outside polar hydrophilic hydrogen and ionic bond interactions, and internal hydrophobic interactions between nonpolar amino acid side chains (Fig.

There is 1 question to complete.