8. (3 pts.) Draw the tripeptide Phe-Gly-Phe in a zig-zag format. Ensure to clearly show all stereochemicalinformation.0.5 Hq (d)0.3 Hq

Step 1: Step 2: Step 3: Step 4:

Answered: 8. (3 pts.) Draw the tripeptide…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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b) The methyl group at the C terminus of aspartame can be cleaved by concentrated sulfuric acid (conc. H₂SO4) to reveal the carboxylic acid (compound 1), which has a pK₂ of 2.43. OH NH₂ OCH3 conc. H₂SO4 OH NH₂ OH Compound 1 The other two pKa values in the molecule are unchanged. It is useful to calculate the isoelectric point (pl) when planning to separate charged species from neutral species with electrophoresis. pKal + PK₂2 2 pl = HINT: i) Calculate the isoelectric point of aspartame. ii) Calculate the isoelectric point of compound 1 and explain your reasoning behind the calculation.
Fisher Projection, Haworth representation and Pyranose/furanose Ring structures of α-D-xylulose 2. Fisher Projection and Pyranose/furanose Ring structures of β-D-talopyranose
Using the structures of glucose, galactose, and fructose, please: 1. Determine if the structures given are the D- or the L- form, 2. Draw the other form (i.e., D- if given L- or L- if given D-) of each structure, 3. Explain why these structures do or do not satisfy the requirements for Fisher diagrams, 4. Draw the Haworth (i.e., cyclic) forms of each structure, i.e., Haworth structures of the D- and L- forms of each. 5. For each structure you have drawn, identify if you have drawn the alpha or the beta forms. Aldehyde functional group Ketone functional CH₂OH group H-C=O H-C=O H-C-OH H-C-OH HO-C-H HO-C-H HO-C-H H-C-OH HO-C-H H-C-OH H-C-OH H-C-OH H-C-OH CH₂OH CH₂OH CH2OH Glucose Galactose Fructose Aldoses A ketose
A portion of sphingomyelin is shown below. Select the most accurate description of R1, R2, and R3 from the choices below the structure: R1 он NH R2 R3 A: R1 is the hydrocarbon tail of sphingosine; R2 is from a fatty acid; R3 is a tertiary amine B: R1 is from a fatty acid; R2 is from a fatty acid, R3 is a quaternary amine C: R1 is from a fatty acid; R2 is the hydrocarbon chain of sphingosine, R3 is a tertiary amine D: R1 is from a fatty acid; R2 is the hydrocarbon chain of sphingosine, R3 is a quaternary amine
Name the following compounds as pyranose/furanose; Pyranoside/Furanoside; alfa/beta; Reducing/ non-reducing sugars
Give detailed Solution with explanation needed..don't give Handwritten answer..don't use Ai for answering this
Draw a pentapeptide, peptide sequence: IENAP Show the position of all 'heavy' atoms with the appropriate letter (C, N, O, S etc.) and indicate the number of attached hydrogen atoms (no skeletal structures allowed).- Show the chirality of the alpha carbon of every residue as the L isomer (not required for Glycine). All trigonal planar groups must be shown explicitly with appropriate geometry. • Show all double bonds and/or partial double bonds. • Draw all ionisable groups as their most highly populated state at pH 7.4 Make the peptide bond between the fourth residue and proline the cis isomer.- Show all other peptide bonds as trans.e
Draw the stucture of the organic reactant/s or product/s of the following reactions. ASAP!!!
7
Which of the following properly represents the alpha (a) form of the C-2 epimer of D-glucose? CH,OH CH2OH OH OH OH OH OH OH A. В. CH2OH CH,OH O, OH OH OH OH OH OH OH OH С. D.
Consider the structures of Cor trimethylglycıne) below, glycme and betaine glyeine betain a) J dntofy all the H-Bonding donors and acceptors in glycine and betaine
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8. (3 pts.) Draw the tripeptide Phe-Gly-Phe in a zig-zag format. Ensure to clearly show all stereochemical information. 0.5 Hq (d) 0.3 Hq