What bonds are present in each type of structure of a protein?

PRIMARY PROTEIN STRUCTURE

This is the sequence of amino acids in a polypeptide chain. These are bonded together by strong covalent bonds

SECONDARY PROTEIN STRUCTURE

The secondary structure is the shape that the polypeptide chain forms as a result of hydrogen bonding. Hydrogen bonds can only form between nitrogen, oxygen, hydrogen and flourine.

These bonds form spiral shapes called alpha helicles or beta pleated sheets.

TERTIARY STRUCTURE

This is the folding of the secondary structure to form a complex 3 dimensional structure. This is achieved by the following bonding:

1. Disulphide bonds

2. Ionic bonds

3. Hydrogen bonds

JJ
Answered by Josh J. Biology tutor

4972 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What was the process of the Meelson and Stahl experiment in proving the process of DNA replication?


What is the effect of an increase in substrate concentration on the rate of reaction?


What are the types and effects of genetic mutations?


How is an action potential transmitted across a cholinergic synapse?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning