(Anyone) Can you please help me with this Chemistry problems? (all of them) Structures and abbreviations of the 20 standard amino acids inclassified according to their side chain (R group) chemistryform,Hydrophobic amino acidsCOO™H-C-CH3NHAlanine (Ala, A)Model 2:witterionicCOO™H-C-CH₂-CHNHCH₂Leucine (Leu, L)COO™Toulon H-CNH-CH₂-Tryptophan (Trp, W)Table Polar amino acidsCOO™H-C-CH₂-OHNHSerine (Ser, S),COO™CH3H-CCH₂OH-CNHAsparagine (Asn, N)COO™-NH₂-CH₂-SHNH10 xod and Cysteine (Cys, C)NHAspartate (Asp, D)COO™H-CCharged amino acidsCOO™LoH-C-CH₂-C-0-NHCH₂aline (Val, V)COO™H-CNHH-CCH3-CHStIsoleucine (Ile, I)-CH-CH₂-CH3CH₂COO™ CH3COO™CH₂H-C-H₂N-CH₂Proline (Pro, P)COOHoubaNHThreonine (Thr, T)CH₂COO-CH-OHH-C-CH₂-CH₂-C-NH₂ΝΗ;Glutamine (Gln, Q)COOH-C-HNHGlycine (Gly, G)OWaH-C-CH₂-CH₂-C-OCOO™NH₂H–C—CH, —CH, —CH, NH—C=NHΝΗ;NHGlutamate (Glu, E)COO™H-C-CH₂-NHPhenylalanine (Phe, F)COO™H-C-CH₂-CH₂-S-CH₂NHMethionine (Met, M)COOH-C-CH₂NH- 247 -Tyrosine (Tyr, Y)COO™H-C-CH₂NHHHistidine (His, H)N-OHCOOH—C—CH, CH, —CH, —CH, NHΝΗ,Lysine (Lys, K)DArginine (Arg, R)[From Essential Biochemistry 3/e; Pratt, C.W. and Cornely, K.; Copyright © (2013) by John Wiley & Sons, Inc.Reprinted with permission of John Wiley & Sons, Inc.]Critical Thinking Questions:5. Look at the structure of alanine at the top of Model 2. Identify the amino group and thecarboxyl group in alanine. Ensure that all team members agree.CA46A 86. What is the side chain of alanine (circle one)? methylWhat is the side chain of valine (circle one)? methylethylpropyl7.bonds. Which of the three classes of amino acids (hydrophobic, polar, charged) has theExamine the side chains of the 20 amino acids, and circle each one that has N-H or O-Hfewest number of amino acids that can hydrogen bond with water?10. What is the opposite of hydrophobic?classes of amino acids could you apply this term?CA46A9. Examine the structure of tryptophan in Model 2. Discuss with your team and devise anexplanation for why it is considered hydrophobic even though it has an N-H bond.+H3N.CH₂(glycine)Information:The carboxylic acid (carboxyl) group of one amino acid and the amino group of another canundergo a condensation reaction to form a new bond, called a peptide bond. The newmolecule is called a dipeptide. More condensations can lead to tripeptides, tetrapeptides,etc., and finally to polypeptides.+H3N.ethylModel 3: The condensation reaction of glycine and alanine makes a dipeptide.OCH3CHCH3 alanine+H3N.propylCH₂glycylalanine248-To which of the threeisopropylisopropylCHCritical Thinking Questions:(11.) The a carbons are the ones bonded to both a carbonyl carbon and a nitrogen atom.Circle all the a carbons in Model 3.(12. Draw a box around the part of the structure for glycylalanine in Model 3 that originatedin alanine. Draw another box around the part of the structure for glycylalanine in Model3 that originated in glycine. All the atoms of glycylalanine should now be in one box orthe other.alanylglycine+H3N(13. The new bond that was formed in the condensation reaction that connected glycine toalanine is called a peptide bond. Draw an arrow to this bond and label it in the model.(14. Consider the dipeptide Ala-Gly (alanylglycine)shown at the right. Is this the same moleculeas Gly-Ala (glycylalanine), or are theyisomers? If they are isomers, what type ofisomers are they? (Hint: Look at thea carbons.)+ H₂OCHCH315. Circle the three side chains (R groups) in Model 4 on the following page. What threeamino acids condensed together to make the tripeptide? Label them in the Model.

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