Question

What types of bonds/interactions are found in the quaternary structure of the proteins

I. hydrogen bonds,
II. Electrostatic interactions,
III. Van Der Waals interactions,
IV. Hydrophobic interactions.
A) I and II
B) II and III
C) III and IV
D) I, II, III, and IV

Answer 1

The quaternary structure of proteins is stabilized by hydrogen bonds, electrostatic interactions, Van der Waals interactions, and hydrophobic interactions. Together, they maintain the protein's structure and functionality.

Step-by-step explanation:

The types of bonds and interactions found in the quaternary structure of proteins include I. hydrogen bonds, II. electrostatic (ionic) interactions, III. Van der Waals interactions, and IV. hydrophobic interactions.

These bonds and interactions are essential in maintaining the stability and structure of a protein that contains multiple subunits.

Each has a different role, such as hydrogen bonds forming between polar side chains, electrostatic interactions often occurring between positively and negatively charged side chains, Van der Waals forces being weak interactions between nonpolar molecules, and hydrophobic interactions involving the clustering away of nonpolar side chains from water.

Therefore, the correct answer is D) I, II, III, and IV.