Question

All proteins have a primary structure. Fibrous and globular proteins have a secondary structure: α helix or β pleated. Globular proteins also have a tertiary structure due to interactions of amino acid side chains with water. Most globular proteins, including hemoglobin also have a quaternary structure. Which of these structures is due to H bonding between amino acid chains?

A) A
B) B
C) C
D) D

Answer 1

The answer is B

Step-by-step explanation:

I had it on usatestprep :)

Answer 2

The answer for this question is A