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I. (12 pts) Give name: a. он b. d. Il. (4 pts) Write the following in...
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
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...
Compleat molecular and structural formulas for D- fructose glucose (Colli's-Tollens' and Haworth (a and B pyranose;...
Compleat molecular and structural formulas for D- fructose glucose (Colli's-Tollens' and Haworth (a and B pyranose; a and B furanose). Name all the formulas and indicate the hemiacetal hydroxyl. Write the equations of glucose interaction with: 1. Cu(OH)2; 2.HNO3; 3.CH31; 4.02. Write down what can be observed if you add sodium hydroxide solution to lactose first and then copper(II) sulfate solution (a) without heating; (b) without heating. Compleat molecular and structural formulas for a,D- fructose. Why is fructose a no...
Question 4 Select the correct Haworth projection for B-D-erythrofuranose. CH OH ОН ОН CHOCH3 ОН CH2OH...
Question 4 Select the correct Haworth projection for B-D-erythrofuranose. CH OH ОН ОН CHOCH3 ОН CH2OH OCH3 ОН ОН ОН. он ОН он ОН ОН ОН ОН ОН — = ПІ IV о I III IV II What is the correct structure of the cyclic hemiacetal that forms under acidic conditions when 5-hydroxy-4-methylpentanal cyclizes? None of the choices are correct. OH OH O OH o OH Question 6 A double stranded DNA fragment contains 20% guanosine residues. Calculate the percentage...
он нас A CH3 B CHa 11) Match the molecule wi acetal 12) Circle the th...
он нас A CH3 B CHa 11) Match the molecule wi acetal 12) Circle the th the functional group _hemiacetal _ketal compound that has the higher boiling point and state a reason why -diethyl ether or 1-butanol N,N-dimethylethanamine or 1-butanamine 3-hexanol or 3-butanol - Butanamide or N-methyl-1-propanamide 13) Circle the compound that is more soluble in water and state a reason why -2-hexanol or 1-propanol N,N-dimethylpropanamide or pentanamide 1-butanol or diethyl ether -3- heptanamine or 3-pentanamine Glucose но. 6 HO-C-H...
(5 Marks) B. Answer the questions based on the structures given below i. ii. нонс нонс...
(5 Marks) B. Answer the questions based on the structures given below i. ii. нонс нонс OH CH HOR OH HO CHOH CH, OH CH OH HO HOM H -OH CH, OH c. Identify the compounds ii, iii and iv as D or L. Explain how you came to this conclusion (2 marks) d. Draw the Fischer projection, enantiomer and indicate which carbons are chiral or achiral for the compound ii. (3 marks) e. Among the compounds iii and iv...
This are organic chemistry assignments, sorry if it's long but i appreciate any help i can...
This are organic chemistry assignments, sorry if it's long but i
appreciate any help i can get
7. What is the name for the enantiomer of D-fructose?
A. D-glucose
B. L-glucose
C. L-galactose
D. L-fructose
10.Which monosaccharide is not a reducing sugar?
A. glucose
B. galactose
C. fructose
D. all the monosaccharides are reducing sugars.
11. Which disaccharide is not a reducing sugar?
A. maltose
B. lactose
C. sucrose
D. all the disaccharides are reducing sugars.
12.Is this reaction an...
Culhydrates 1. Complete th Complete the table by classifying each sugar sugar (A, B, C, D)...
Culhydrates 1. Complete th Complete the table by classifying each sugar sugar (A, B, C, D) below based on carbonyl group and number of carbons (c.8. aldohexose, ketotriose, etc.). Classify them as an antiomer. Indicate the number of chiral carbons for each sugar. Sugar Classification based on carbonyl group and number of carbons Lor D enantiomer Number of chiral carbons н-с-он HO-6-H. н-с-он ін,он CH,OH C=0 HO-C-H н-с-он HO-C-H. ён,он снон c=0 | HO-C-H ін,он H-C-OH CH, OH CD 2....
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 the
following description
Given the open chain structure of L-glucose, draw the Haworth structures for both the c-and B-forms. HO но-с-н н-с-он но-с-н но-с-н Сн,он
Name: Problem of the week #15 (for week 16)-November 27, 2018 (Tuesday) oChem2 (Section 4, CHE...
Name: Problem of the week #15 (for week 16)-November 27, 2018 (Tuesday) oChem2 (Section 4, CHE 3643.004)-BONUS!) EXTRA HOMEWORK Chapters 28/29-Sugars/Amino Acids (Will be collected on NOVEMBER 29, 2018- THURSDAY:*8:30AM 1. Below is the "staggered structure of D-glucose: D-glucose (A) Starting from the "staggered" conformation, draw D-glucose as a Fischer projection (you will have to draw the "eclipsed" conformation first). Go through all of the steps to show how you came up with the Fischer projection of D-glucose. Your eclipsed...
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
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...
Compleat molecular and structural formulas for D- fructose glucose (Colli's-Tollens' and Haworth (a and B pyranose; a and B furanose). Name all the formulas and indicate the hemiacetal hydroxyl. Write the equations of glucose interaction with: 1. Cu(OH)2; 2.HNO3; 3.CH31; 4.02. Write down what can be observed if you add sodium hydroxide solution to lactose first and then copper(II) sulfate solution (a) without heating; (b) without heating. Compleat molecular and structural formulas for a,D- fructose. Why is fructose a no...
Question 4 Select the correct Haworth projection for B-D-erythrofuranose. CH OH ОН ОН CHOCH3 ОН CH2OH OCH3 ОН ОН ОН. он ОН он ОН ОН ОН ОН ОН — = ПІ IV о I III IV II What is the correct structure of the cyclic hemiacetal that forms under acidic conditions when 5-hydroxy-4-methylpentanal cyclizes? None of the choices are correct. OH OH O OH o OH Question 6 A double stranded DNA fragment contains 20% guanosine residues. Calculate the percentage...
он нас A CH3 B CHa 11) Match the molecule wi acetal 12) Circle the th the functional group _hemiacetal _ketal compound that has the higher boiling point and state a reason why -diethyl ether or 1-butanol N,N-dimethylethanamine or 1-butanamine 3-hexanol or 3-butanol - Butanamide or N-methyl-1-propanamide 13) Circle the compound that is more soluble in water and state a reason why -2-hexanol or 1-propanol N,N-dimethylpropanamide or pentanamide 1-butanol or diethyl ether -3- heptanamine or 3-pentanamine Glucose но. 6 HO-C-H...
(5 Marks) B. Answer the questions based on the structures given below i. ii. нонс нонс OH CH HOR OH HO CHOH CH, OH CH OH HO HOM H -OH CH, OH c. Identify the compounds ii, iii and iv as D or L. Explain how you came to this conclusion (2 marks) d. Draw the Fischer projection, enantiomer and indicate which carbons are chiral or achiral for the compound ii. (3 marks) e. Among the compounds iii and iv...
This are organic chemistry assignments, sorry if it's long but i
appreciate any help i can get
7. What is the name for the enantiomer of D-fructose?
A. D-glucose
B. L-glucose
C. L-galactose
D. L-fructose
10.Which monosaccharide is not a reducing sugar?
A. glucose
B. galactose
C. fructose
D. all the monosaccharides are reducing sugars.
11. Which disaccharide is not a reducing sugar?
A. maltose
B. lactose
C. sucrose
D. all the disaccharides are reducing sugars.
12.Is this reaction an...
Culhydrates 1. Complete th Complete the table by classifying each sugar sugar (A, B, C, D) below based on carbonyl group and number of carbons (c.8. aldohexose, ketotriose, etc.). Classify them as an antiomer. Indicate the number of chiral carbons for each sugar. Sugar Classification based on carbonyl group and number of carbons Lor D enantiomer Number of chiral carbons н-с-он HO-6-H. н-с-он ін,он CH,OH C=0 HO-C-H н-с-он HO-C-H. ён,он снон c=0 | HO-C-H ін,он H-C-OH CH, OH CD 2....
give the name of one or more polysaccharides that matches the
following description
Given the open chain structure of L-glucose, draw the Haworth structures for both the c-and B-forms. HO но-с-н н-с-он но-с-н но-с-н Сн,он
Name: Problem of the week #15 (for week 16)-November 27, 2018 (Tuesday) oChem2 (Section 4, CHE 3643.004)-BONUS!) EXTRA HOMEWORK Chapters 28/29-Sugars/Amino Acids (Will be collected on NOVEMBER 29, 2018- THURSDAY:*8:30AM 1. Below is the "staggered structure of D-glucose: D-glucose (A) Starting from the "staggered" conformation, draw D-glucose as a Fischer projection (you will have to draw the "eclipsed" conformation first). Go through all of the steps to show how you came up with the Fischer projection of D-glucose. Your eclipsed...
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