You have discovered a new amino acid that you name in honor of your favorite course. Twofourteeninine has an alpha-amino and an alpha-carboxylic group, and an ionizable side chain that carries an amino group. A titration curve of twofourteeninine is shown below. Net charge a P CD e f g I I 0 1 2 4 5 6 7 pH 1 I 8 9 10 11 12 13 What are the approximate pKą values of twofourteeninine (to the nearest half-pH unit)? Check all that apply.

Do the titrated amino acids appear to be acidic, basic, or neutral amino acids? Explain your conclusion with reference to the data and to theory.

This macromolecule is readily available and used extensively.The molecule below is a H H HHH C-H H-C-o HHHH HHHH HHHH H H C-C -C-C H-C-o HHHH H H H H HHH H. H H o-0-H a saturated fatty acid amino acid monounsaturated fatty acid O triglyceride O polyunsaturated fatty acid I-o-z I-O-I I-O-I I-0-I I-O-I I-0-I

Consider this structure. CH₂OH HO Part 1 of 3 NH Identify the monosaccharide. Select the single best answer. D-2-deoxyribose D-ribose Part 2 of 3 Identify the base. Select the single best answer. thymine guanine cytosine adenine Ouracil Part: 2/3 Part 3 of 3 Name the structure. х NH₂

Indicate the net charge of cysteine at pH 9.5 Express your answer using two significant figures.

Estimate the PI of the given amino acid? Assume that the amino acid contains a single carboxylic acid group on the side chain.

The structure of the dipeptide Gly-Asn is given by . The structures of the amino acids Gly and Asn are given below. NH2 H. ČH2 H3N-C-CO H. H3N-C-CO H. Asn Gly NH2 CH2 H H H2 C COO 2. H3N-C -C H. 1. H&N C C-NH C COO NH, NH2 CH2 H. H2 C C NH2 3. H3N-C C- -C COO 4. 0OC-C NH3" Click Save and Submit to save and submit. Click Save All Ansuwers to save all answers. MacBook Air esc 吕0 DII DD F1 F2 F3 F4 F5 F6 F7 F8 F9 @ 2$ & 1 2 4 5 7 8 Q W E R Y | A S D F G K C V N M < CO # 3 HICH

Describe the important biochemical properties of carbohydrates and why carbohydrates would be considered polar molecules. A▾ B I X @ F 7

Which of the following amino acids are more likely to be on the interior of the protein? And which are more likely to be exposed to the surface? L I D E W A V K H M Q Y

S-palmitoylation is an example of a lipid modification, where the fatty acid forms a thioester with a cysteine residue. What is the structure of an alkynyl S-palmitoylated protein?  (You can draw the main part of the protein as a blob)