CAIE IGCSE Chemistry 11.8.13 & draw the structure of proteins as
Practise drawing protein chains by joining amino acid blocks with correctly oriented amide linkages and all bonds shown.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Practise drawing protein chains by joining amino acid blocks with correctly oriented amide linkages and all bonds shown.
The table shows the structures of four hydrocarbons.

Amino acids undergo polymerisation to form proteins. Part of a protein molecule with the linkages missing is shown.
Draw the linkages on the diagram. Show all of the atoms and all of the bonds.



any one correct amide link showing all bonds
both amide links shown in the correct orientation for three amino acids