Homework Answers
1) In Haworth projection of glucose, six membered ring is formed in which OH lie below in alpha form and lie above in beta form.
Cellulose contain beta glucose.
Glycogen contain alpha glucose.
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give the name of one or more polysaccharides that matches the
following description
Given the open...
Give the name of one or more polysaccharides that matches each of the following descriptions. not...
Give the name of one or more polysaccharides that matches each of the following descriptions. not digestible by humans
14 Give the name of one or more polysaccharides that matches the following description: Celulos mot digestible by h...
14 Give the name of one or more polysaccharides that matches the following description: Celulos mot digestible by humans а. Starch the storage form of carbohydrates in plants b. Amylas GINConen contains only a-1,4 glycosidic bonds. C. the most highly branched polysaccharide d. the storage form of carbohydrate in animals е. Cellulose contains only B-1,4 glycosidic bonds f. 4-4
Answer for 1a and 1b 1. Below are the cyclic and open-chain structures for glucose and...
Answer for 1a and 1b
1. Below are the cyclic and open-chain structures for glucose and fructose. (6 points total) а) Label each structure as glucose or fructose. (1 pt each, 4 pts) b) Glucose is a(n) and fructose is a(n). (ketose, aldose) (1 pt each, 2 pts) CH,OH -он HOCH ОН HOH н но/сн,он он OH H o=4 нон Но+н н+он н+он CH2OH CH2OH с=0 но-н нон н+он Сн,он
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...
1a. For this question, select the LETTER of the structure that corresponds to the given Fischer...
1a. For this question, select the LETTER of the structure that corresponds to the given Fischer projection. Select "NONE" if none of the structures are correct. но -н но-Ен нон он сн он CH2OH ни он СН2ОН Они — он он на он ин н но Он на и он н нон нон 1- — о сн,он СН2ОН но он Онон ХОН н на но Он ни ин нон 1b. For this question, select the LETTER of the structure that...
15. (3 pts each) Give the product(s) for the following reactions, and name all reactants and...
15. (3 pts each) Give the product(s) for the following reactions, and name all reactants and products. CH, он ОН н,с + H3c— сн - сн 3 Нас NH2 он + о н Н H-с-с-о-н Но -P -ОН н Н ОН
Q1: CH, OH CHOH HO X OH OH OH a. Give common name of the given...
Q1: CH, OH CHOH HO X OH OH OH a. Give common name of the given sugars. b. Name the glycoside linkage c. Identify them and reducing or non-reducing sugars d. Write the product for hydrolysis of these disaccharides Q 2: (a) Identify the type of isomers: СНО СНО но НО —н -н нон н — — ОН СН,ОН СН,ОН
12.36 Draw Fischer projections for each of the following dash-wedge structures: a. CHO b. CHO C. CHO с но : Br...
12.36 Draw Fischer projections for each of the following dash-wedge structures: a. CHO b. CHO C. CHO с но : Br CH OH Ho : н СН,ОН н : ОН СН,ОН
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 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
14 Give the name of one or more polysaccharides that matches the following description: Celulos mot digestible by humans а. Starch the storage form of carbohydrates in plants b. Amylas GINConen contains only a-1,4 glycosidic bonds. C. the most highly branched polysaccharide d. the storage form of carbohydrate in animals е. Cellulose contains only B-1,4 glycosidic bonds f. 4-4
Answer for 1a and 1b
1. Below are the cyclic and open-chain structures for glucose and fructose. (6 points total) а) Label each structure as glucose or fructose. (1 pt each, 4 pts) b) Glucose is a(n) and fructose is a(n). (ketose, aldose) (1 pt each, 2 pts) CH,OH -он HOCH ОН HOH н но/сн,он он OH H o=4 нон Но+н н+он н+он CH2OH CH2OH с=0 но-н нон н+он Сн,он
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...
1a. For this question, select the LETTER of the structure that corresponds to the given Fischer projection. Select "NONE" if none of the structures are correct. но -н но-Ен нон он сн он CH2OH ни он СН2ОН Они — он он на он ин н но Он на и он н нон нон 1- — о сн,он СН2ОН но он Онон ХОН н на но Он ни ин нон 1b. For this question, select the LETTER of the structure that...
15. (3 pts each) Give the product(s) for the following reactions, and name all reactants and products. CH, он ОН н,с + H3c— сн - сн 3 Нас NH2 он + о н Н H-с-с-о-н Но -P -ОН н Н ОН
Q1: CH, OH CHOH HO X OH OH OH a. Give common name of the given sugars. b. Name the glycoside linkage c. Identify them and reducing or non-reducing sugars d. Write the product for hydrolysis of these disaccharides Q 2: (a) Identify the type of isomers: СНО СНО но НО —н -н нон н — — ОН СН,ОН СН,ОН
12.36 Draw Fischer projections for each of the following dash-wedge structures: a. CHO b. CHO C. CHO с но : Br CH OH Ho : н СН,ОН н : ОН СН,ОН
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 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
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