1. For D-glucose and D-fructose provide the following information: a) Molecular formula b) Fischer projection of...
Report Sheet A.2 Fischer projection of D-glucose Haworth (cyclic) formulas B-D-glucose Q-D-glucose Bouwbedeus A.3 Fischer projection of D-fructose Haworth (cyclic) formula for C-D-fructose Fischer projection of D-galactose Haworth (cyclic) formula for a-D-galactose Questions and Problems Q.1 How does the structure of D-glucose compare to the structure of D-galactose?
1. Which of the following is an aldohexose? 2. Which of the following is a cetopentose? 3. Which of the following best describes the relationship between D-glucose and D-fructose? 4. Which of the following is (are) L-alfohexose(s)? 5. Which of the following aldohexose(s) is (are) dextrorotatory? 6. How many stereoisomers are possible for L-galactose? Draw or look for its structure. 7. Which of the following conpounds is a pair of enantiomers? 8. Draw the fisher projection for L-sedoheptulose and also...
THE CARBOHYDRATE LAB: CRANBERRIES and EDIBLE STYROFOAM PRE LAB QUESTIONS DATE NAME 1. Use Haworth and Fischer projections to illustrate how glucose transitions from an open chain structure to a cyclic molecule. Number the carbons in both structures. 2. Write a COMPLETE definition for BOTH a hydrolysis reaction AND a dehydration synthesis
4. Consider the following Fischer Projection: CH, OH I 9 CH OH A Does this represent a monosaccharide, a disaccharide, a trisaccharide or something else? B Are any chiral carbons present? If so, circle each one. C Does this represent an aldose or a ketose? Explain your response and draw a box around the relevant functional group. D Give the molecular formula for this compound. E Is this compound classified as an L-isomer or a D- isomer? your response. Explain...
1. use the Haworth projection formula to draw each of the following monosaccharides: a.alpha-D-Glucose 6-phosphate b. alpha-D-Deoxyribose c. alpha-L-Fructose
b) Write the structure of the following compounds (Fischer projection): (D)-serine, (S)-methionine c) Write the structure of the following tripeptide: H-Ala-Pro-Phe-OH 2. Determine the N-terminal amino acid of the above tripeptide (H-Ala-Pro-Phe-OH) using the Sanger method (chemical equation). 3. Starting from alanine and glycine synthetize the glycyl-alanine (H-Ala-Gly-OH) dipeptide using mixed anhydride coupling method with Boc (amino) and Bn (carboxyl) protecting groups (reagents, reaction conditions, chemical equations). 4. Starting from the appropriate aldehyde synthetize alanine using the Strecker synthesis (reactions,...
(3) Answer the following question about the carbohydrate. [15 points) A) For given structure of D-Fructose, draw the structure for one example of the required stereoisomers. (9 points) D-Fructose CH,OH Enantiomer (Fischer Structure) Epimer (Fischer Structure) Enomer (Haworth structure) CO HO -CH HC-OH -C OH CH,OH Name: B) Complete the following table with the proper information for listing three disaccharides (6 Points) Name of the Composition (monosaccharides) Type of glycosidic disaccharide linkage Maltose Lactose + Sucrose
41. The following sugar is also called frukt sugar A Glucose Maltese Lactose Section 11 Sucrose ) Fructose 42. The following ugaris Afructose Sucrose caled blood sugar Lactose Glucose E) Matose 43. Alactone is a cyclic Calcohol Detone Section 111 44. Refer to the above ructures the enantiomer of Duco A) D-Fructo -Gluco C L-Glucose Dj L-Idee Section 111 D-Galactose 45. Refer to the above structures. The diastereoisomers of Glucose indude all of these, except AD Galactose Glucose -dose D-Fructose...
please help!! switching to all online is so hard 50. When the following Fischer projection closes, which is the alpha Haworth form? CH2OH EO A 7 Но он se a cozycy A) a CH2OH a on B) HONE LOH HO CH₂ OH HO C2 C3°" cho CH2OH Lornoon E) Two of these are correct 51. What is the correct relationship between the 2 compounds? CH₂OH сом C=O 40 - OH HOH CH₂OH A) diastereomers B) epimers C) enantionmers and H0+...
Chapters 21 and 22: 1. Consider the structure shown on the right and answer the following questions about it (ill in blanks or cirele proper choice) (4 a. Its molecular formula is G ,H( )0( , and so it fits the CHOH , general formula for a carbohydrate, which is b. Specifically, this structure is (a D/ an L) (aldo/keto) (pent/hex) (aselose) c. Will it be optically active? d. If the top carbon was converted to a CH,OH, would it...