Please answering the following
questions, 1-3.
Homework Answers
1.
Linear structure of D-Glucose is
2.
3.
Add Answer to:
Please answering the following
questions, 1-3.
1. Draw the linear structure of D-glucose 2. Draw the...
Draw the structure of the polysaccharide alpha-D-Glucopyranosyl- 1-> 3- beta-D-mannopyranosyl – 1->6 - alpha-D-fructopyranose in the chair...
Draw the structure of the polysaccharide alpha-D-Glucopyranosyl- 1-> 3- beta-D-mannopyranosyl – 1->6 - alpha-D-fructopyranose in the chair and Haworth configuration, showing the appropriate glycosidic linkages. Does this polysaccharide have free anomeric hydroxyl groups? If so, circle them in the structure you have drawn.
1. Draw glucose B-D-glucose in a chair form, and circle the anomeric carbon. Why is the...
1. Draw glucose B-D-glucose in a chair form, and circle the anomeric carbon. Why is the anomeric carbon significant? 2. Why is cyclization of sugars important? What does the concept of mutarotation indicate to us about dual roles of monosaccharides? Two part question: 3. Why are monosaccharides most commonly found in pyran and furan ring forms, rather than: A) other ring motifs -(think along the lines of: why NOT 3,4, or 7 membered rings)? B) in their linear form? 4....
1. Drawing of carbohydrate structures (2.5 pts) - a) Draw the ring structures of the trisaccharide...
1. Drawing of carbohydrate structures (2.5 pts) - a) Draw the ring structures of the trisaccharide Glucose-Galactose- Fructose connected by beta-1,4 glycosidic linkages. b) In the trisaccharide structure you have drawn, circle each glycosidic linkage and point with an arrow each free anomeric hydroxyl group (i.e. not modified by glycosidic linkage).
2. Which of the following statements is true of cyclic forms of 6-carbon sugars? a. Conversion...
2. Which of the following statements is true of cyclic forms of 6-carbon sugars? a. Conversion of the linear form to the cyclic form results from a reaction between the 0 3 carbonyl C and an alcohol in the same molecule. b. Six-C sugars only form 6-membered rings c. The cyclic form has the same number of chiral centers as the linear form. d.xAt room temperature in aqueous solutions, glucose is primarily in the linear form Both a and b...
Teonatog B. Disaccharides B.1 Structure of a-D-maltose B.2 Equation for the hydrolysis of a-D-maltose B.3 Formation...
Teonatog B. Disaccharides B.1 Structure of a-D-maltose B.2 Equation for the hydrolysis of a-D-maltose B.3 Formation of a-D-lactose B.4 Structure of sucrose Questions and Problems Q.2 What is the type of glycosidic bond in maltose? Q.3 Why does maltose have both a and B anomers? Explain.
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",...
Sucralose, Part 2 5 of 7 Which group should you draw an arrow from and which group should you dra...
Sucralose, Part 2 5 of 7 Which group should you draw an arrow from and which group should you draw that arrow to on the Fischer projection shown below to indicate the nucleophilio attack that must occur to cyclize this monosaccharide to form the monomer structure shown on the right in the dissacharide A CH2CI 2 но-c он 3 он 4 CH2Cl Reset Help carbon D Arrow from to Part B Which of the following describes the ring on the...
5. Below, draw a ketoheptose of your choosing in its linear form, and then in the...
5. Below, draw a ketoheptose of your choosing in its linear form, and then in the corresponding cyclic form. Linear Cyclic 6. The end of a polysaccharide that has an anomeric carbon that is not bound to another saccharide is called the reducing end; the anomeric carbon can still open and close and also act as a reducing agent. How many reducing ends does a small amylopectin molecule with 100 branches have? Refer to the structure given in our notes...
1) a. Please draw the structure of the intermediate in the process shown below. CH2OH CH2OH...
1) a. Please draw the structure of the intermediate in the process shown below. CH2OH CH2OH Кон о он КОН OH OH OH OH OH The process shown above is called: c. Please mark an anomeric carbon and designate the orientation of the hydroxyl group. d. Indicate the carbon that determines the D or L configuration in the glucopyranose above by number or with an X. e. Is this a reducing sugar? f. Can it react with another carbohydrate to...
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...
1. Draw glucose B-D-glucose in a chair form, and circle the anomeric carbon. Why is the anomeric carbon significant? 2. Why is cyclization of sugars important? What does the concept of mutarotation indicate to us about dual roles of monosaccharides? Two part question: 3. Why are monosaccharides most commonly found in pyran and furan ring forms, rather than: A) other ring motifs -(think along the lines of: why NOT 3,4, or 7 membered rings)? B) in their linear form? 4....
1. Drawing of carbohydrate structures (2.5 pts) - a) Draw the ring structures of the trisaccharide Glucose-Galactose- Fructose connected by beta-1,4 glycosidic linkages. b) In the trisaccharide structure you have drawn, circle each glycosidic linkage and point with an arrow each free anomeric hydroxyl group (i.e. not modified by glycosidic linkage).
2. Which of the following statements is true of cyclic forms of 6-carbon sugars? a. Conversion of the linear form to the cyclic form results from a reaction between the 0 3 carbonyl C and an alcohol in the same molecule. b. Six-C sugars only form 6-membered rings c. The cyclic form has the same number of chiral centers as the linear form. d.xAt room temperature in aqueous solutions, glucose is primarily in the linear form Both a and b...
Teonatog B. Disaccharides B.1 Structure of a-D-maltose B.2 Equation for the hydrolysis of a-D-maltose B.3 Formation of a-D-lactose B.4 Structure of sucrose Questions and Problems Q.2 What is the type of glycosidic bond in maltose? Q.3 Why does maltose have both a and B anomers? Explain.
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",...
Sucralose, Part 2 5 of 7 Which group should you draw an arrow from and which group should you draw that arrow to on the Fischer projection shown below to indicate the nucleophilio attack that must occur to cyclize this monosaccharide to form the monomer structure shown on the right in the dissacharide A CH2CI 2 но-c он 3 он 4 CH2Cl Reset Help carbon D Arrow from to Part B Which of the following describes the ring on the...
5. Below, draw a ketoheptose of your choosing in its linear form, and then in the corresponding cyclic form. Linear Cyclic 6. The end of a polysaccharide that has an anomeric carbon that is not bound to another saccharide is called the reducing end; the anomeric carbon can still open and close and also act as a reducing agent. How many reducing ends does a small amylopectin molecule with 100 branches have? Refer to the structure given in our notes...
1) a. Please draw the structure of the intermediate in the process shown below. CH2OH CH2OH Кон о он КОН OH OH OH OH OH The process shown above is called: c. Please mark an anomeric carbon and designate the orientation of the hydroxyl group. d. Indicate the carbon that determines the D or L configuration in the glucopyranose above by number or with an X. e. Is this a reducing sugar? f. Can it react with another carbohydrate to...
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...
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