Describe the structure of proteins

-Primary structure is the number and sequence of amino acids in a polypeptide.-The secondary structure of a polypeptide is the formation of alpha helices and beta- pleated sheets stabilised by hydrogen bonding. -The tertiary structure is the three-dimensional conformation of a polypeptide, stabilised by intramolecular bonds and interactions between amino acids in the polypeptide. examples of these interactions include disulphide bridges, ionic bonds, and hydrophobic interactions. -The quaternary structure of a polypeptide is the linking of two or more polypeptides to form a single protein.

Answered by Biology tutor

1695 Views

See similar Biology IB tutors

Related Biology IB answers

All answers ▸

Saccharomyces is a microscopic eukaryote. Explain the use of Saccharomyces in beer production.


Explain how a nerve impulse passes along a neuron (8 marks)


Cells becoming resistant to bacteria; Within a population of bacteria, NO cells are resistant to antibiotics. Over time, ALL cells are resistant to antibiotics. Outline the steps of natural selection that lead to a fully resistant population:


explain the breakdown of erythrocytes in the body


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