BIOMOLECULES AND ENZYMES

BIOLOGY

STRUCTURE OF PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Refers to the complex, three-dimensional structure of a single amino acid chain in a protein molecule.
A
tertiary structure
B
primary structure
C
secondary structure
D
fibrous proteins
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -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-3: -Tertiary structure-the level of protein structure at which an entire polypeptide chain has folded into a three-dimensional structure.

Detailed explanation-4: -Tertiary structure is the next level up from the secondary structure, and is the particular three-dimensional arrangement of all the amino acids in a single polypeptide chain.

Detailed explanation-5: -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.

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