(a(i))[3]
Complete Fig. 1.1 by showing how the bond between cysteine and the growing amino-acid chain forms during translation.
(a(ii))[1]
State the name of the covalent bond formed when cysteine is added to the growing amino-acid chain.
(a(iii))[1]
State the organelle in which the reaction shown in Fig. 1.1 occurs.
(b(i))[2]
Describe the secondary structure of the protein shown in Fig. 1.2.
(b(ii))[2]
Explain why the protein shown in Fig. 1.2 has tertiary structure, but not quaternary structure.
(b(iii))[3]
An analysis of the amino acid composition of the protein in Fig. 1.2 showed that it contains no cysteine residues. Explain how the three-dimensional structure of the protein shown in Fig. 1.2 is held in place.