Question

1. put a box around the atoms in the amino acids that become the h₂o molecule produced by the reaction in model 1. protein structure what are the levels of protein structure and what role do functional groups play? why? proteins accomplish many cellular tasks such as facilitating chemical reactions, providing structure, and carrying information from one cell to another. how a protein chain coils up and folds determines its three - dimensional shape. its shape will, in turn, determine how it interacts with other molecules and thus performs its function in the cell. model 1 - formation of a peptide bond amino acid 1 amino acid 2 dipeptide

Explanation:

Step1: Understand peptide - bond formation

In peptide - bond formation between two amino acids, a water molecule is a by - product. The hydrogen ($H$) comes from the amino group ($-NH_2$) of one amino acid and the hydroxyl group ($-OH$) comes from the carboxyl group ($-COOH$) of the other amino acid.

Step2: Identify atoms in amino acids for water formation

In the given Model 1, box the hydrogen atom from the amino group of one amino acid and the $O - H$ group from the carboxyl group of the other amino acid. For example, in Amino acid 1, box one of the hydrogen atoms attached to the nitrogen in the amino group ($-NH_2$), and in Amino acid 2, box the $O - H$ group of the carboxyl group ($-COOH$).

Answer:

Box one hydrogen atom from the amino group ($-NH_2$) of one amino acid and the $O - H$ group from the carboxyl group ($-COOH$) of the other amino acid as shown in Model 1.