Question

model 2 - protein structure (part a)
primary structure
amino - acid sequence: ser - tyr - ala - phe - val - cys - tyr - asp - cys - gly
peptide structure:
secondary structure

1. locate the primary structure of the polypeptide in model 2.

a. draw an arrow to two different peptide bonds in the diagram.
b. circle three separate amino acids that were joined together to make the polypeptide.

Explanation:

Step1: Identify peptide bonds

Peptide bonds are -CO - NH - linkages. In the primary - structure peptide diagram, they can be found between amino - acids.

Step2: Identify amino - acids

Amino - acids have an amino group (-NH₂), a carboxyl group (-COOH), and a side - chain (R - group). In the primary - structure diagram, the individual amino - acids are connected by peptide bonds.

Since this is a visual task and cannot be directly done in text format:

Answer:

a. On the primary - structure peptide diagram, an arrow should be drawn to two different -CO - NH - linkages (peptide bonds).
b. On the primary - structure peptide diagram, three separate amino - acids (with their -NH₂, -COOH, and R - groups) should be circled.