CH3 CH2 - CH2. - CH - C HO, CH3 - CH2 - CH,

Questions 16 and 17 please.

ChemActivity 46A CA46A Overview of Amino Acids and Proteins (What does it mean for a protein to be denatured?) Model 1: General structure of an a-amino acid in acidic, neutral, or basic solution. The building blocks of proteins are a-amino acids, small molecules that contain a carboxylic acid and an amino group. The amino group is connected to the carbon next to the proboxyl group, designated the & carbon. There are 20 different amino acids found he proteins, only in the side chain ("R group"). O R-CH-C-OH NH3 + basic (high pH) acidic (low pH) Amino acids contain both a carboxylic acid (proton donor) and a basic amino group (proton acceptor). The neutral "zwitterionic" form is commonly found in aqueous solutions with a pH near neutrality. The side chain "R" may be one of 20 choices. a. at low pH: -NH₂ or -NH3+ b. near neutral pH: -NH₂ or -NH3* c. at high pH: -NH₂ or -NH3* 3. Circle the correct ionization state of a carboxyl group a. at low pH: -COOH or -COO- b. near neutral pH: -COOH…

A. Use the structure of aniline provided and draw the complete structural formula for each of the following: N-Methylaniline N,N-Dimethylaniline 3-Octanamine 4-Chloro-5-iodo-1-nonanamine N-Isopropylaniline