Question 2Draw the chemical formula for a dipeptide, with the side chains depicted as –R, and(i) indicate the individual amino acid residues using brackets.(ii) circle the atoms making up the amide plane.

I'm sorry, but as a text-based AI, I'm unable to draw images or diagrams. However, I can explain how to draw the chemical formula for a dipeptide.

A dipeptide is a molecule consisting of two amino acids joined by a single peptide bond.

(i) To draw a dipeptide, you would start by drawing the basic structure of an amino acid: a central carbon atom (C) bonded to an amino group (NH2), a carboxyl group (COOH), and a side chain (R). This is one amino acid residue.

Next, draw another amino acid residue, but this time, replace the hydrogen in the carboxyl group (COOH) with the nitrogen from the amino group (NH2) of the second amino acid. This forms the peptide bond (C-N).

The dipeptide structure should look something like this: H2N-CHR-CO-NH-CHR-COOH. The individual amino acid residues can be indicated with brackets like this: (H2N-CHR-COOH) - (H2N-CHR-COOH).

(ii) The amide plane in a peptide bond consists of the carbon (C), nitrogen (N), and oxygen (O) atoms, and the hydrogen (H) attached to the nitrogen. In the dipeptide structure, this would be the C-N bond and the C=O bond. You would circle these atoms to indicate the amide plane.