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Problem 4 (10 pts) D-allose is the C2-epimer of D-glucose. Draw the open form (Fischer Projection)...
If anyone can help me with this page that would be amazing! (10 pts) 1. Answer...
If anyone can help me with this page that would be
amazing!
(10 pts) 1. Answer the following nomenclature questions. a. Allose is the C-3 epimer of glucose. Draw a-D-allopyranose in its most stable chair conformation. b. Draw ß-D-allopyranose in its least stable chair conformation. c. Draw the zwitterionic Fischer projection of L-phenylalanine d. Draw LDA e. Draw ethyl a-D-ribofuranoside (10 pts) 2. The amino acid histidine has an imidizole ring (shown below), which is able to react with an...
4. Consider the following Fischer Projection: CH, OH I 9 CH OH A Does this represent...
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...
Draw the structures of D-glucose, L-glucose and L-mannose in a Fischer projection. Give the configuration at...
Draw the structures of D-glucose, L-glucose and L-mannose in a Fischer projection. Give the configuration at each stereogenic site. Report each carbon number with its configuration (e.g. 1R, 2R, 7S).
Show the structure of a disaccharide in Haworth projection with two D-glucose units connected with a...
Show the structure of a disaccharide in Haworth projection with two D-glucose units connected with a beta-1,4'-glucosidic-linkage. H H OH HO H H OH H OH CH2OH
3) Draw the disaccharide that is formed when the following two mon joined by a B...
3) Draw the disaccharide that is formed when the following two mon joined by a B (1-3) glycosidic linkage. (2 pts) two monosaccharides are CH₂OH онон - он снон, 9 w OH 3 OH CH, OH OH OH OR 0 Y 4) Consider the disaccharide sophorose, a product of the caramelization of glucose, answer the following questions: CH,OH Мон OH ОН a) Classify the glycosidic linkage as a or B, and use the numbers to designate its location. (1 pt)...
Draw the structure of lactose give Blucopyranose. (D-galactose is a C-4 epimer of D-glucose) is: B-D-galactopyranos...
Draw the structure of lactose give Blucopyranose. (D-galactose is a C-4 epimer of D-glucose) is: B-D-galactopyranosyl-(1,4)-a-D-
ÇI-lagl- (2 pts) Use the Fischer projection shown below for the sugar D-altrose to draw a...
ÇI-lagl- (2 pts) Use the Fischer projection shown below for the sugar D-altrose to draw a Haworth projection of the beta- 2. pyranose form of this sugar. но -Н H- OH H- OH OH H- CH-ОН 1
b) Write the structure of the following compounds (Fischer projection): (D)-serine, (S)-methionine c) Write the structure...
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,...
10. (15 pts) Answer the following questions about two disaccharides, (a) maltose, or malt sugar. and...
10. (15 pts) Answer the following questions about two disaccharides, (a) maltose, or malt sugar. and (b) lactose, or milk sugar. CH, OH CH OH CH, OH CH, OH + oH HHH OHHO CH OHH OHHA OHN H OH (b) Он н х H OH Maltose contains two glucose monomers joined by an -1.4 glycosidic bond Lactose contains one galactose and one glucose monomer joined by a 14 ghycoside bond (a) (2 pts) Explain what is meant by "a", "1",...
1. Which of the following is an aldohexose? 2. Which of the following is a cetopentose? 3. Which of the following best d...
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...
If anyone can help me with this page that would be
amazing!
(10 pts) 1. Answer the following nomenclature questions. a. Allose is the C-3 epimer of glucose. Draw a-D-allopyranose in its most stable chair conformation. b. Draw ß-D-allopyranose in its least stable chair conformation. c. Draw the zwitterionic Fischer projection of L-phenylalanine d. Draw LDA e. Draw ethyl a-D-ribofuranoside (10 pts) 2. The amino acid histidine has an imidizole ring (shown below), which is able to react with an...
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...
Show the structure of a disaccharide in Haworth projection with two D-glucose units connected with a beta-1,4'-glucosidic-linkage. H H OH HO H H OH H OH CH2OH
3) Draw the disaccharide that is formed when the following two mon joined by a B (1-3) glycosidic linkage. (2 pts) two monosaccharides are CH₂OH онон - он снон, 9 w OH 3 OH CH, OH OH OH OR 0 Y 4) Consider the disaccharide sophorose, a product of the caramelization of glucose, answer the following questions: CH,OH Мон OH ОН a) Classify the glycosidic linkage as a or B, and use the numbers to designate its location. (1 pt)...
Draw the structure of lactose give Blucopyranose. (D-galactose is a C-4 epimer of D-glucose) is: B-D-galactopyranosyl-(1,4)-a-D-
ÇI-lagl- (2 pts) Use the Fischer projection shown below for the sugar D-altrose to draw a Haworth projection of the beta- 2. pyranose form of this sugar. но -Н H- OH H- OH OH H- CH-ОН 1
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,...
10. (15 pts) Answer the following questions about two disaccharides, (a) maltose, or malt sugar. and (b) lactose, or milk sugar. CH, OH CH OH CH, OH CH, OH + oH HHH OHHO CH OHH OHHA OHN H OH (b) Он н х H OH Maltose contains two glucose monomers joined by an -1.4 glycosidic bond Lactose contains one galactose and one glucose monomer joined by a 14 ghycoside bond (a) (2 pts) Explain what is meant by "a", "1",...
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...
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