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142 Problems and questions 1. Are all carbohydrates soluble in water? Explain. 2. Draw the Fischer...
Spring 2020 E. Carbohydrates Part 1: In the box, draw the Fischer projection (linear conformation) that...
Spring 2020 E. Carbohydrates Part 1: In the box, draw the Fischer projection (linear conformation) that corresponds to the Haworth projection sugar given below. Note: This sugar is a ketose. (6 pts) СН2 она to 2 но - н 3 н он ч CH,OH Р +он 5 ОН 5 Н НО а H снаби о Сн,он ОН Н Part 2: Draw the Haworth projection of the given monosaccharide as a 6-sided a-pyranose ring. (7 pts) Н. 0 / са он...
3. Ribose isan) Carbohydrates a) aldotetrose b) aldopentose c) ketotriose 1. The monosaccharide that is also...
3. Ribose isan) Carbohydrates a) aldotetrose b) aldopentose c) ketotriose 1. The monosaccharide that is also called blood sugar 4. In the following Fischer projection, which chiral carbon is used to determine whether the sugar is。er L? a) ribulose b) galactose c) glucose d) bose a) The green carbon b) The yellow carbon c) The blue carbon d) The red carbon он но но CH2OH 2. All of the following monosaccharides are aldoses &. In the following Flscher projection, is...
(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...
4. Consider the following Fischer Projection: CH, OH I 9 CH OH A Does this represent...
4. Consider the following Fischer Projection: CH, OH I 9 CH OH A Does this represent a monosaccharide, a disaccharide, a trisaccharide or something else? B Are any chiral carbons present? If so, circle each one. C Does this represent an aldose or a ketose? Explain your response and draw a box around the relevant functional group. D Give the molecular formula for this compound. E Is this compound classified as an L-isomer or a D- isomer? your response. Explain...
1. Draw an L ketopentose and a D-aldotetrose using the Fischer Projection. 2. Draw an a...
1. Draw an L ketopentose and a D-aldotetrose using the Fischer Projection. 2. Draw an a then B isomerfor the Haworth Structure. CHон Cнон -O OH H H H H OH H OH H. OH H OH H 4. Describe and draw an example of a Chiral 3. What is mutarotation all about??? molecule. 5. Fill in the table with the information required. Monosaccharide #1 Monosaccharide # 2 Monosaccharide #3 Name Major functional group Molecular formula Other fact Disaccharide #3:...
CARBOHYDRATES POST-LAB QUESTIONS CONT'D 23.Draw the Haworth structure of lactose and explain why this disaccharide gives...
CARBOHYDRATES POST-LAB QUESTIONS CONT'D 23.Draw the Haworth structure of lactose and explain why this disaccharide gives a positive Benedict's test; make sure to circle the part of the structure that is responsible for the reaction with Benedict's reagent. [5pts) Haworth Projection: (2.5 points) Hemiacetal circled / indicated (2.5 points) CARBOHYDRATES POST-LAB QUESTIONS CONT'D 24. When Benedict's reagent reacts with a reducing sugar, it oxidizes the aldehyde functional group to a carboxylic acid. As seen in the figure below: only a...
ch the item in column 2 that best match the item in column 1. 6. Match...
ch the item in column 2 that best match the item in column 1. 6. Match the Column 1 Column 2 glycogen cellulose amylose sucrose glucose A. monosaccharide that is the main food for the brain B. composed of one glucose and one fructose C. component of starch composed of branched and unbranched glucose units. D. monosaccharide that is sweeter than table sugar E. monosaccharide which is a component of milk sugar F. most abundant polysaccharide in nature G. storage...
please help!! switching to all online is so hard 50. When the following Fischer projection closes,...
please help!! switching to all online is so hard
50. When the following Fischer projection closes, which is the alpha Haworth form? CH2OH EO A 7 Но он se a cozycy A) a CH2OH a on B) HONE LOH HO CH₂ OH HO C2 C3°" cho CH2OH Lornoon E) Two of these are correct 51. What is the correct relationship between the 2 compounds? CH₂OH сом C=O 40 - OH HOH CH₂OH A) diastereomers B) epimers C) enantionmers and H0+...
Carbohydrates homework 1. Identify the sugars as aldose or ketose, Lor D, and determine the number...
Carbohydrates homework 1. Identify the sugars as aldose or ketose, Lor D, and determine the number of Chiral centers. cv.ok CHO к D ско 1 н- 4 ko ho- M "Т, oly CH₂OH ChooH Chaok И CH₂OH H ой k он ой н ho И no и ой си, ch 20h 2. Identify the relation between the structures in each of the following pairs. с СО со Chow но -И h он lko НЕ OM -v с Р oh -...
11.a) Draw the open chain (Fischer) structure of D-altrose. (1pt) (b) How many chiral centers are...
11.a) Draw the open chain (Fischer) structure of D-altrose.
(1pt)
(b) How many chiral centers are in D-altrose? ______ (1pt)
(c) What is the maximum number of possible stereoisomers whch
can exist for D-altrose? _____ (1pt)
(d) Draw L-altrose in open chain form (use Fischer projection) –
you may use the space above. (1pt)
(e) Use the information above to draw a Haworth projection for
alpha-D-altropyranose. (2pt)
Ruff degradation on a monosaccharide causes C1 to be lost as
carbon dioxide,...
Spring 2020 E. Carbohydrates Part 1: In the box, draw the Fischer projection (linear conformation) that corresponds to the Haworth projection sugar given below. Note: This sugar is a ketose. (6 pts) СН2 она to 2 но - н 3 н он ч CH,OH Р +он 5 ОН 5 Н НО а H снаби о Сн,он ОН Н Part 2: Draw the Haworth projection of the given monosaccharide as a 6-sided a-pyranose ring. (7 pts) Н. 0 / са он...
3. Ribose isan) Carbohydrates a) aldotetrose b) aldopentose c) ketotriose 1. The monosaccharide that is also called blood sugar 4. In the following Fischer projection, which chiral carbon is used to determine whether the sugar is。er L? a) ribulose b) galactose c) glucose d) bose a) The green carbon b) The yellow carbon c) The blue carbon d) The red carbon он но но CH2OH 2. All of the following monosaccharides are aldoses &. In the following Flscher projection, is...
(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...
4. Consider the following Fischer Projection: CH, OH I 9 CH OH A Does this represent a monosaccharide, a disaccharide, a trisaccharide or something else? B Are any chiral carbons present? If so, circle each one. C Does this represent an aldose or a ketose? Explain your response and draw a box around the relevant functional group. D Give the molecular formula for this compound. E Is this compound classified as an L-isomer or a D- isomer? your response. Explain...
1. Draw an L ketopentose and a D-aldotetrose using the Fischer Projection. 2. Draw an a then B isomerfor the Haworth Structure. CHон Cнон -O OH H H H H OH H OH H. OH H OH H 4. Describe and draw an example of a Chiral 3. What is mutarotation all about??? molecule. 5. Fill in the table with the information required. Monosaccharide #1 Monosaccharide # 2 Monosaccharide #3 Name Major functional group Molecular formula Other fact Disaccharide #3:...
CARBOHYDRATES POST-LAB QUESTIONS CONT'D 23.Draw the Haworth structure of lactose and explain why this disaccharide gives a positive Benedict's test; make sure to circle the part of the structure that is responsible for the reaction with Benedict's reagent. [5pts) Haworth Projection: (2.5 points) Hemiacetal circled / indicated (2.5 points) CARBOHYDRATES POST-LAB QUESTIONS CONT'D 24. When Benedict's reagent reacts with a reducing sugar, it oxidizes the aldehyde functional group to a carboxylic acid. As seen in the figure below: only a...
ch the item in column 2 that best match the item in column 1. 6. Match the Column 1 Column 2 glycogen cellulose amylose sucrose glucose A. monosaccharide that is the main food for the brain B. composed of one glucose and one fructose C. component of starch composed of branched and unbranched glucose units. D. monosaccharide that is sweeter than table sugar E. monosaccharide which is a component of milk sugar F. most abundant polysaccharide in nature G. storage...
please help!! switching to all online is so hard
50. When the following Fischer projection closes, which is the alpha Haworth form? CH2OH EO A 7 Но он se a cozycy A) a CH2OH a on B) HONE LOH HO CH₂ OH HO C2 C3°" cho CH2OH Lornoon E) Two of these are correct 51. What is the correct relationship between the 2 compounds? CH₂OH сом C=O 40 - OH HOH CH₂OH A) diastereomers B) epimers C) enantionmers and H0+...
Carbohydrates homework 1. Identify the sugars as aldose or ketose, Lor D, and determine the number of Chiral centers. cv.ok CHO к D ско 1 н- 4 ko ho- M "Т, oly CH₂OH ChooH Chaok И CH₂OH H ой k он ой н ho И no и ой си, ch 20h 2. Identify the relation between the structures in each of the following pairs. с СО со Chow но -И h он lko НЕ OM -v с Р oh -...
11.a) Draw the open chain (Fischer) structure of D-altrose.
(1pt)
(b) How many chiral centers are in D-altrose? ______ (1pt)
(c) What is the maximum number of possible stereoisomers whch
can exist for D-altrose? _____ (1pt)
(d) Draw L-altrose in open chain form (use Fischer projection) –
you may use the space above. (1pt)
(e) Use the information above to draw a Haworth projection for
alpha-D-altropyranose. (2pt)
Ruff degradation on a monosaccharide causes C1 to be lost as
carbon dioxide,...
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