BIOMOLECULES AND ENZYMES

BIOLOGY

AMINO ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Hydrogen bonds do not play a part in which level of structure of a protein?
A
primary
B
secondary
C
tertiary
D
None of the above
Explanation: 

Detailed explanation-1: -The primary structure which corresponds to the sequence of the amino acids is stabilized only by the peptide bond and not by any intermolecular forces of attraction such as hydrogen bonding. Secondary, tertiary, and quaternary structures, on the other hand, can be stabilized by hydrogen bonding.

Detailed explanation-2: -Explanation: A protein’s primary structure is defined solely by its amino acid sequence, and is constructred by peptide bonds between adjacent amino acid residues. Secondary structure results from hydrogen bonding along the polypeptide backbone, resulting in alpha-helices and beta-pleated sheets.

Detailed explanation-3: -Hydrogen bonds are also important in secondary structures (alpha-helix and beta sheets) but these hydrogen-bonding interactions occur among the atoms involved in the peptide backbone. Hydrogen bonding is not important in the primary structure since the main stabilizing force for this is the peptide bond itself.

Detailed explanation-4: -Hydrogen bonding is the stronger form of secondary bonding and is formed from polar molecular bonding. These form, for example, in water and hydrogen fluorides.

Detailed explanation-5: -So, the correct option is ‘Glycosidic bond’.

There is 1 question to complete.