Science at a Distance

Physical Structure

Lecture notes - Part 1 Lecture notes - Part 2

Lecture Notes

a check up

Use this section to check up on the accuracy of your lecture notes. Make sure that you have written down the following definitions, explanations and important concepts in your notes.

Physical Structure - Part Three

Amino Acids

Amino acids are the monomers used to build the chains that eventually become proteins. There are approximately 20 - 22 different common amino acids.

Polypeptides and the Peptide bond

Amino acids are monomers. They are joined together in long chains by chemical reactions that eliminate water and create joins between them called peptide bonds