The following structure is sorbose CH2OH C=0 H-C-OH НО -С -Н 4. Draw the boat conformation of no. 3. Н-С-ОН 5. Draw the chair conformation of no. 3. CH2OH 6. How many stereoisomers does sorbose have? 7. Draw all the L isomers of this sugar. 8. Group the L isomers as enantiomers and diastereomers.
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- 18. D-galactose is soluble in water because of the interaction of the –OH groups of the monosaccharide and watermolecules. What type of intermolecular bond is established between the sugar and water?A. London Dispersion forcesB. Covalent bondC. Hydrogen bondD. Ion-dipole interaction 19. Some disaccharides are non-reducing because they have no free anomeric carbons. Based on this information, whichof the following disaccharides is non-reducing?A. glucopyranosyl α-(1 →4) glucopyranosideB. galactopyranosyl β-(1 → 4) glucopyranosideC. glucopyranosyl α-(1 → 2) fructopyranosideD. glucopyranosyl β-(1 → 3) glucopyranoside10. o . Briefly discuss Ramchandran plot. . What is quaternary structure of proteins? Mention the role of various bond in its structure with the help of an example give its biochemical function. What are liposomes? Discuss their role in medicine. . Differentiate between cerebroside and ganglioside and one disorder associated with each. RModify isoleucine to show the predominant forms at pH 1, 7, and 13. Isoleucine has p?ap�a values of 2.4 (carboxyl group) and 9.7 (amino group).
- 4 This is a three-part question about a tripeptide. Answer all three sub-questions. The pKR of side chains of Tyr, and Lys is 10.46 and 10.54 respectively. The molecular weight of amino acids Ala, Lys, and Tyr in neutral form is 89.1, 146.2, and 181.2 Da, respectively. 1) Draw the chemical structure of the dominant form of tripeptide AKY at pH = 11.5, ensure you have the correct stereochemistry and ionization state of each functional group (Hint, lysine has a C-epsilon as the furthest carbon from C-alpha). 2) Calculate the pI of tripeptide AKY, assuming the terminal amino group has a pKa of 8.0, and the terminal carboxyl group has a pKa of 3.5 3) Calculate the molecular weight of AKY at pIdraw the primary structure of the polypeptide at physiological pH range of 7.35-7.45 and put each charges beside the amino acids then compute for the isoelectric point please show complete solution DFACKTPlease help me calculate the molecular weight of the unknown amino acid. The following are the given data from titration: Mass: 0.2689 pI: 7.359 volume of NaPH at pI: 20 mL pKa1: 1.179 pKa2: 12.333 mass is in grams NaOH not NaPH
- VISUALIZE The structures depicted are (a) enantiomers (b) different views of the same molecule (c) geometric (cistrans) isomers (d) both geometric isomers and enantiomers (e) structural isomersLong explanations are not needed. Direct answers may suffice. a. B-D-2-Deoxyribose is an aldopentose component of the nucleic acid structure with its -OH group at C-3 reduced to -H. I. True II. False b. Aldohexoses commonly exist in living systems in either the straight chain or ring (pyranose) forms. I. True II.FalseOptical isomerism of amino acids. L and D amino acids. Chiral centers of amino acids. Give examples of amino acids that do not have optical isomers.
- COLOR TESTS FOR PROTEINS AND SPECIFIC AMINO ACIDS Give the name and structure of at least two examples of each of the following: heterocyclic amino acid aromatic amino acid –OH containing amino acid sulfur containing amino acid basic amino acid Acidic amino acid aliphatic non-polar amino acidPlease answer both of the following 1) The Haworth projection of D-altrose is shownWhat type of cyclic sugar is formed? 2)Which of the following statement is true about the quaternary structure of aprotein? only one answer is correctPh Level given: Acetic Acid = pH value of 3 Monocholoroacetic Acid = pH value of 2 Acetamide = pH value of 6 Acetone = pH value of 5.5 Glycine= pH value of 6 Lysine = pH value of 7.2 Isopropyl alcohol = pH value of 6 Phenol = pH value of 5.1 Compare the pH value of the following compounds: (explain in 3 sentences each) a. Acetic Acid and Monochloroacetic Acid b. Acetamide and Acetone c. Glycine and Lysine d. Isopropyl alcohol and Phenol