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B. Disaccharides 1. a-maltose 2. Equation for the hydrolysis of a-maltose 3. Equation for the formation...
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.
PROBLEMS 120 points Draw the Haworth projections for each of the following disaccharides. Be sure to...
PROBLEMS 120 points Draw the Haworth projections for each of the following disaccharides. Be sure to correctly display the orientations and bonding. maltose (glucose a(1-4) glucose] sucrose (glucose a(1-2) fructose) lactose (galactose 3(1-4) glucose]
pts) Answer the following questions about two disaccharides, (a) maltose, or malt sugar, (b) lactose, or...
pts) Answer the following questions about two disaccharides, (a) maltose, or malt sugar, (b) lactose, or milk sugar. ОНН он н нон Maltose contains two glucose monomers Lactose contains one galactose and one glucose bond pts) Explain what is meant by "a", and 4" in the term a-1,4 glycosidic bond. rcle this bond in the appropriate structure. ts) Explain what is meant by "B", "1, and "4" in the term p-1,4 glycosidic bor le this bond in the appropriate structure....
1. Maltose, trehalose, and cellobiose are all disaccharides of glucose that differ in the nature of...
1. Maltose, trehalose, and cellobiose are all disaccharides of glucose that differ in the nature of the glycosidic bond attaching the two glucosyl residues. In maltose, the linkage is α(1→4); in trehalose, the linkage is α(1→1); in cellobiose the linkage is β(1→4). Based upon this information,which of these disaccharides is a non-reducing sugar? Explain your reasoning. Which of these disaccharides results from the breakdown of cellulose? Explain your reasoning. Which of these disaccharides results from the breakdown of amylose? 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",...
F. Hydrolysis of disaccharides and polysaccharides Test tube #1 Test tube #2 Test tube #3 Test...
F. Hydrolysis of disaccharides and polysaccharides Test tube #1 Test tube #2 Test tube #3 Test tube #4 Test tube contents 2 to starch 2% starch 2% sucrose 2% sucrose Iodine test observations Polysaccharide present? (yes/no) no yes yes no Benedict's test observations Cloudy cloudy I brownish peach I greenw/ in COLOR precipitate butter precipitate COLOK w Red at no color Change Yellowish ves Hydrolyzed? (yes/no) no What observation indicated the presence of a polysaccharide? The color of the iodine...
I.-(3 pts) What is the structural difference between an aldose and a ketose 2. (2 pts) Which two ...
I.-(3 pts) What is the structural difference between an aldose and a ketose 2. (2 pts) Which two functional groups are present in all monosaccharides? 3. (4 pts) Wha is the name of the molecule below? Which enantiomer is represented? C-H но-с-н CH2OH 4. (2 pts) Wha property of a pair of molecules results in the formation of enantiomers? 5. (3 pts) How are the symbols D- or L- assigned in naming a sugar? 6. (3 pts The following disaccharides...
For each of the disaccharides or polysaccharides select from the response list the correct hydrolysis products....
For each of the disaccharides or polysaccharides select from the response list the correct hydrolysis products. Responses may be used more than once or need not be used at all. a) glucose only b) glucose and galactose c) glucose and fructose d) glucose and ribose 35. Sucrose 36. Lactose 37. Cellulose 38. Starch 39. Glycogen For each of the disaccharides or polysaccharides select from the response list the correct characterization of the type of glycosidic linkages present in the compound....
1. (2 pts) What is produced when polysaccharides and disaccharides are hydrolyzed? 2. (2 pts) A...
1. (2 pts) What is produced when polysaccharides and disaccharides are hydrolyzed? 2. (2 pts) A monosaccharides can exist as an open chain or as a cyclic compound. Which form is more stable? 3. (4 pts) Sucrose is the only carbohydrate for which it is necessary to make a fresh solution (all of the other carbohydrates will already be prepared in solution for you). When performing the Benedict's test and the others), why is it necessary for YOU to make...
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...
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.
PROBLEMS 120 points Draw the Haworth projections for each of the following disaccharides. Be sure to correctly display the orientations and bonding. maltose (glucose a(1-4) glucose] sucrose (glucose a(1-2) fructose) lactose (galactose 3(1-4) glucose]
pts) Answer the following questions about two disaccharides, (a) maltose, or malt sugar, (b) lactose, or milk sugar. ОНН он н нон Maltose contains two glucose monomers Lactose contains one galactose and one glucose bond pts) Explain what is meant by "a", and 4" in the term a-1,4 glycosidic bond. rcle this bond in the appropriate structure. ts) Explain what is meant by "B", "1, and "4" in the term p-1,4 glycosidic bor le this bond in the appropriate structure....
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",...
F. Hydrolysis of disaccharides and polysaccharides Test tube #1 Test tube #2 Test tube #3 Test tube #4 Test tube contents 2 to starch 2% starch 2% sucrose 2% sucrose Iodine test observations Polysaccharide present? (yes/no) no yes yes no Benedict's test observations Cloudy cloudy I brownish peach I greenw/ in COLOR precipitate butter precipitate COLOK w Red at no color Change Yellowish ves Hydrolyzed? (yes/no) no What observation indicated the presence of a polysaccharide? The color of the iodine...
I.-(3 pts) What is the structural difference between an aldose and a ketose 2. (2 pts) Which two functional groups are present in all monosaccharides? 3. (4 pts) Wha is the name of the molecule below? Which enantiomer is represented? C-H но-с-н CH2OH 4. (2 pts) Wha property of a pair of molecules results in the formation of enantiomers? 5. (3 pts) How are the symbols D- or L- assigned in naming a sugar? 6. (3 pts The following disaccharides...
For each of the disaccharides or polysaccharides select from the response list the correct hydrolysis products. Responses may be used more than once or need not be used at all. a) glucose only b) glucose and galactose c) glucose and fructose d) glucose and ribose 35. Sucrose 36. Lactose 37. Cellulose 38. Starch 39. Glycogen For each of the disaccharides or polysaccharides select from the response list the correct characterization of the type of glycosidic linkages present in the compound....
1. (2 pts) What is produced when polysaccharides and disaccharides are hydrolyzed? 2. (2 pts) A monosaccharides can exist as an open chain or as a cyclic compound. Which form is more stable? 3. (4 pts) Sucrose is the only carbohydrate for which it is necessary to make a fresh solution (all of the other carbohydrates will already be prepared in solution for you). When performing the Benedict's test and the others), why is it necessary for YOU to make...
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...
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