Concept explainers
(a)
Interpretation: An explanation for the given statement that having glycine at every other residue allows
Concept introduction: A secondary structure of proteins formed by the side by side bonding of amino acids is known as
(b)
Interpretation: An explanation for the insolubility of silk fibers in water is to be stated.
Concept introduction: A secondary structure of proteins formed by the side by side bonding of amino acids is known as
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ORGANIC CHEMISTRY SOLUTION MANUAL
- does structure E represent fructofuranose? explainarrow_forwardIs gentiobiose a reducing sugar? Does it mutarotate? Explain your reasoningarrow_forwardWhat is the corresponding energy difference expected between these two - D glucose? And what is interconversion between these isomeric sugars?arrow_forward
- Draw the α-d-tagatopyranose sugars using Haworth projections:arrow_forwardLeuprolide is a synthetic nonapeptide used to treat both endometriosis in women and prostate cancer in men. (a) Both C-terminal and N-terminal amino acids in leuprolide have been structurally modified. Identify the modifications. (b) One of the nine amino acids in leuprolide has d stereochemistry rather than the usual L. Which one? (c) Write the structure of leuprolide using both one- and three-letter abbreviations. (d) What charge would you expect leuprolide to have at neutral pH?arrow_forwardWrite the haworth projection for (A) B_D_glucofuranose (B) a_D_frotopyranosearrow_forward
- If lactose is first hydrolyzed (by addition of sulfuric acid) into its constituent monosaccharide, and then subjected to complete methylation, what methylated products do you expect?arrow_forwardWhat is the Fisher Projection, Haworth representation and Pyranose/furanoseRing structures of β-D-talopyranose and α-D-xylulose?arrow_forwardA D-aldopentose A is reduced to an optically active alditol. Upon Kiliani–Fischer synthesis, A is converted to two Daldohexoses, B and C. B is oxidized to an optically inactive aldaric acid. C is oxidized to an optically active aldaric acid. What are the structures of A–C?arrow_forward
- Macroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks Cole