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5. Glucose can form two different ring structures as shown. Draw a mechanism to show how...
5 a) identify the anomeric carbon in the below molecule b) identify the thpe of ring...
5 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
6 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
7 The structure of 6-carbon ketose sugar is shown. Draw the
common cyclic structure of this structure (both a and b form)
8 Identify the relationship...
A Fischer projection of a monosaccharide is shown below: A Fischer projection of a monosaccharide is...
A Fischer projection of a monosaccharide is shown below:
A Fischer projection of a monosaccharide is shown below: CHO H- -ОН HO -H HO -H I -OH CH2OH v to form ring. When this monosaccharide cyclizes, carbon v bonds to the oxygen on carbon Note that the numbering of the carbons begins at the top of the Fischer projection. furanose pyranose A Fischer projection of a monosaccharide is shown below: CH2OH C=0 H OH НО. -H CH OH v to...
30. Which of the choices below is the enantiomer of D-glucose? сно сно нон HO-EH сно...
30. Which of the choices below is the enantiomer of D-glucose? сно сно нон HO-EH сно на-он D-glucose Іно-Ен н -он но-Ен EH,OH сно но н-он но -н нон Сн,он но-Ен на-он но -н но-Ен н -он нон CHO но -н н-он но-Ен нон снен CHOH Сн,он 3. Which of the following structures is an a-anomer? Сн,он —о, он o ноноон нонс осн он — о оно сн, он он онон он он он он тон КСн,он y CH, OH...
D-Glucose is in dynamic equilibrium between the three structures shown below. Choose the form of glucose...
D-Glucose is in dynamic equilibrium between the three structures
shown below. Choose the form of glucose that best satisfies each of
the following characteristics.
OPTIONS ARE: alpha-D-glucopyranose, beta-D-glucopyranose,
D-glucose (open chain).
1. most reactive form - ?
2. structural unit of disaccharide maltose - ?
3. structural unit of the disaccharide cellobiose - ?
4. structural unit of the polysaccharide glycogen - ?
5. structural unit of the polysaccharide cellulose - ?
CH2OH но HO H-C-OH но-с-н н-с-он н-с-он Сн,ОН...
35. Enzymatic processing to break down glycogen into glucose occurs at: a. a reducing end. b....
35. Enzymatic processing to break down glycogen into glucose occurs at: a. a reducing end. b. a non-reducing end. c. reducing and non-reducing ends simultaneously. d. branch points exclusively. 36. Which furanose is the B anomer of the monosaccharide given by the Fischer projection below? CH2OH 0= но о он a OH но о K он но, HOT о, -н он о. он Он KOH /он но TOH Нон но LOH HO но н но - он но -ОН -н...
38.) Which of the following is a pyranose ring? CH OH CH,Ho H OH OH Індон...
38.) Which of the following is a pyranose ring? CH OH CH,Ho H OH OH Індон A) I only B) II only C) Both I and II are pyranose rings. D) Neither I nor II are pyranose rings. 39.) In the pyranose form of D-glucose, the-OH on the anomeric carbon atom in the a-form is to carbon 6, while in the B-form it is to carbon 6. A) trans, cis B) cis, trans C) trans, trans D) cis, cis 40.)...
22. Convert the following Fisher projection into a Haworth projection. Draw only the alpha anomer (12...
22. Convert the following Fisher projection into a Haworth
projection. Draw only the alpha anomer (12 points)
21. Are the following pairs of carbohydrates the same, completely different, constitutional isomers or stereoisomers? (12 points at 3 points each) CHO CHO CHO сњон он OH он он CH2OH он он он он он но он но но он он CH2OH CH2OH он CHO CHO CHO сњон он он он он он но он но но Ho но он но он OH...
D-glucose is shown below in its straight-chain and ring forms. A) Put an asterisk next to...
D-glucose is shown below in its straight-chain and ring
forms.
A) Put an asterisk next to each chiral carbon in the
straight-chain form of D-glucose.
B) Label the given ring forms as the alpha or beta anomer of
D-glucose. Draw the other anomer. Which one is more stable, the
alpha or beta anomer? Explain your logic.
H Он он но H Но Но Н он H он он н но но
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each...
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
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...
5 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
6 a) identify the anomeric carbon in the below molecule
b) identify the thpe of ring pyranose or furanose
c) identify if it is a or b
7 The structure of 6-carbon ketose sugar is shown. Draw the
common cyclic structure of this structure (both a and b form)
8 Identify the relationship...
A Fischer projection of a monosaccharide is shown below:
A Fischer projection of a monosaccharide is shown below: CHO H- -ОН HO -H HO -H I -OH CH2OH v to form ring. When this monosaccharide cyclizes, carbon v bonds to the oxygen on carbon Note that the numbering of the carbons begins at the top of the Fischer projection. furanose pyranose A Fischer projection of a monosaccharide is shown below: CH2OH C=0 H OH НО. -H CH OH v to...
30. Which of the choices below is the enantiomer of D-glucose? сно сно нон HO-EH сно на-он D-glucose Іно-Ен н -он но-Ен EH,OH сно но н-он но -н нон Сн,он но-Ен на-он но -н но-Ен н -он нон CHO но -н н-он но-Ен нон снен CHOH Сн,он 3. Which of the following structures is an a-anomer? Сн,он —о, он o ноноон нонс осн он — о оно сн, он он онон он он он он тон КСн,он y CH, OH...
D-Glucose is in dynamic equilibrium between the three structures
shown below. Choose the form of glucose that best satisfies each of
the following characteristics.
OPTIONS ARE: alpha-D-glucopyranose, beta-D-glucopyranose,
D-glucose (open chain).
1. most reactive form - ?
2. structural unit of disaccharide maltose - ?
3. structural unit of the disaccharide cellobiose - ?
4. structural unit of the polysaccharide glycogen - ?
5. structural unit of the polysaccharide cellulose - ?
CH2OH но HO H-C-OH но-с-н н-с-он н-с-он Сн,ОН...
35. Enzymatic processing to break down glycogen into glucose occurs at: a. a reducing end. b. a non-reducing end. c. reducing and non-reducing ends simultaneously. d. branch points exclusively. 36. Which furanose is the B anomer of the monosaccharide given by the Fischer projection below? CH2OH 0= но о он a OH но о K он но, HOT о, -н он о. он Он KOH /он но TOH Нон но LOH HO но н но - он но -ОН -н...
38.) Which of the following is a pyranose ring? CH OH CH,Ho H OH OH Індон A) I only B) II only C) Both I and II are pyranose rings. D) Neither I nor II are pyranose rings. 39.) In the pyranose form of D-glucose, the-OH on the anomeric carbon atom in the a-form is to carbon 6, while in the B-form it is to carbon 6. A) trans, cis B) cis, trans C) trans, trans D) cis, cis 40.)...
22. Convert the following Fisher projection into a Haworth
projection. Draw only the alpha anomer (12 points)
21. Are the following pairs of carbohydrates the same, completely different, constitutional isomers or stereoisomers? (12 points at 3 points each) CHO CHO CHO сњон он OH он он CH2OH он он он он он но он но но он он CH2OH CH2OH он CHO CHO CHO сњон он он он он он но он но но Ho но он но он OH...
D-glucose is shown below in its straight-chain and ring
forms.
A) Put an asterisk next to each chiral carbon in the
straight-chain form of D-glucose.
B) Label the given ring forms as the alpha or beta anomer of
D-glucose. Draw the other anomer. Which one is more stable, the
alpha or beta anomer? Explain your logic.
H Он он но H Но Но Н он H он он н но но
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
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...
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