Carbohydrates
Form cyclic tautomers of D-galactose (only pyranoses), D-ribose (only furanoses) and D-fructose (only furanoses). To answer this question use the following algorithm: draw Fisher projection formula of monosaccharide; form cyclic tautomer, using Tollens formula; convert Tollens formula into Haworth formula; name every cyclic tautomer
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Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2)...
Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2) Area-D-glucose and B-D-glucose anomers? Are they enantiomers? Explain 3) Draw Haworth structure of B-D-galactose and B-D-fructose. 4) Convert each Haworth projection to a Fisher projection
Report Sheet A.2 Fischer projection of D-glucose Haworth (cyclic) formulas B-D-glucose Q-D-glucose Bouwbedeus A.3 Fischer projection...
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 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...
1. Below is a monosaccharide in its cyclic (ring) form. OH он Linear form OH a)...
1. Below is a monosaccharide in its cyclic (ring) form. OH он Linear form OH a) Is the monosaccharide the a-or the B-anomer? b) Label each carbon with its carbon number. c) Draw the linear form of this monosaccharide with the correct chirality in the box at right. 2. a) Draw the linear form of D-ribose: b) Ribose can form a pyranose ring. Draw an electron arrow on your linear ribose drawing above, indicating which nucleophile attacks which electrophile to...
Part 1 - Build Models and Draw Prolection Formulas from Na was from Names Use the model the model kits to build the...
Part 1 - Build Models and Draw Prolection Formulas from Na was from Names Use the model the model kits to build the following carbohydrates. Draw the Fischer projection formulas of a, b and d. Draw the Haworth noiection formula force, and f. Mark the chiral carbons with an a, a D-ketopentose b. D-ribose Model check c. B-D-fructose d. D-2-deoxyribose Model check e. a-D-galactose f. B-D-glucose Model check
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 cyclic Haworth projection of the beta-furanose form of D-fructose.
Draw the cyclic Haworth projection of the beta-furanose form of D-fructose. Show the mecahnism behind it.14 (2).pdf
Draw the Haworth projections (cyclic forms) of L form along with alpha and beta of each...
Draw the Haworth projections (cyclic forms) of L form along with alpha and beta of each of the following: Glucose (glucopyranose), Mannose (mannopyranose), Galactose (galactopyranose), Fructose, Fructofuranose, Fructopyranose
CH OH онон Consider a cyclic structure of a monosaccharide: CH, OH Draw the open-chain form...
CH OH онон Consider a cyclic structure of a monosaccharide: CH, OH Draw the open-chain form of this monosaccharide using this link https://cactus.nci.nih.gov/translate/ To draw the structure: 1. Click "start structure editor". 2. Draw the structure you suggest for the answer. You can draw it in a "Fischer projection" like fashion - making horizontal lines with the "wedged" bonds to emphasize chirality. (see the example below) 3. Click "submit molecule". 4. the program will generate a "SMILES" formula which is...
worth 8 points - a) D-Idose differs from D-Glucose at positions 2, 3 and 4. Draw...
worth 8 points - a) D-Idose differs from D-Glucose at positions 2, 3 and 4. Draw D-Idose (2D Fisher) and alpha-D-dose (3D Haworth) Projections for this monosaccharide. b) D-Sorbose differs from D-Fructose at positions 3 and 4. Draw D-Sorbose (2D Fisher) and beta-D-Sorbose (3D Haworth) Projections for this monosaccharide. Type your answer here. 2.500 characters max. 2,500 remaining Next >
Ch. 15 Carbohydrates 1) How many stereocenters are in: a) Glucose b) Fructose c) Galactose 2) Area-D-glucose and B-D-glucose anomers? Are they enantiomers? Explain 3) Draw Haworth structure of B-D-galactose and B-D-fructose. 4) Convert each Haworth projection to a Fisher projection
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...
1. Below is a monosaccharide in its cyclic (ring) form. OH он Linear form OH a) Is the monosaccharide the a-or the B-anomer? b) Label each carbon with its carbon number. c) Draw the linear form of this monosaccharide with the correct chirality in the box at right. 2. a) Draw the linear form of D-ribose: b) Ribose can form a pyranose ring. Draw an electron arrow on your linear ribose drawing above, indicating which nucleophile attacks which electrophile to...
Part 1 - Build Models and Draw Prolection Formulas from Na was from Names Use the model the model kits to build the following carbohydrates. Draw the Fischer projection formulas of a, b and d. Draw the Haworth noiection formula force, and f. Mark the chiral carbons with an a, a D-ketopentose b. D-ribose Model check c. B-D-fructose d. D-2-deoxyribose Model check e. a-D-galactose f. B-D-glucose Model check
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)...
CH OH онон Consider a cyclic structure of a monosaccharide: CH, OH Draw the open-chain form of this monosaccharide using this link https://cactus.nci.nih.gov/translate/ To draw the structure: 1. Click "start structure editor". 2. Draw the structure you suggest for the answer. You can draw it in a "Fischer projection" like fashion - making horizontal lines with the "wedged" bonds to emphasize chirality. (see the example below) 3. Click "submit molecule". 4. the program will generate a "SMILES" formula which is...
worth 8 points - a) D-Idose differs from D-Glucose at positions 2, 3 and 4. Draw D-Idose (2D Fisher) and alpha-D-dose (3D Haworth) Projections for this monosaccharide. b) D-Sorbose differs from D-Fructose at positions 3 and 4. Draw D-Sorbose (2D Fisher) and beta-D-Sorbose (3D Haworth) Projections for this monosaccharide. Type your answer here. 2.500 characters max. 2,500 remaining Next >
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