Describe the structure of proteins

Proteins are polymers of Aminoacids. Aminoacids are joined in condensation reactions (water is eliminated) by peptide bonds. The primary structure is the order of aminoacids in the protein, while the secondary structure is the folding of the polypeptide chain into alpha helix and beta pleated sheets which are held together by hydrogen bonds. The tertiary structure is the 3D shape of the polypeptide chain due to hydrogen and ionic bonds. The folding of 2 or more polypeptide chains represents the quaternary structure of a protein.

Related Biology A Level answers

All answers ▸

What is the purpose of mitosis and explain the stages


How do neurotransmitters transmit action potentials across synapses?


Compare and Contrast Meiosis and Mitosis


What happens to DNA during mitosis?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences