State the type of polymerisation reaction that takes place when natural polyamides form.
State the name used for natural polyamides.
Complete Fig. 6.2 so that it shows the general structure of an amino acid. Include all of the atoms and all of the bonds in the functional groups.
Complete Fig. 6.4 to show the section of the natural polyamide formed when amino acids A, B and C combine. Show all atoms and all bonds in the linkages.
Write the expression for $R_f$. $R_f$ =
Explain why the baseline is drawn in pencil.
State the type of material used to make the colourless amino acids visible on the chromatogram in Fig. 6.6.
Explain why, in Fig. 6.6, only two spots appear from the mixture of three amino acids.
Suggest how the experiment could be altered so that all three amino acids are separated.