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F. Hydrolysis of disaccharides and polysaccharides Test tube #1 Test tube #2 Test tube #3 Test...
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...
. HYDROLYSIS WITH ACID (Results AFTER HEATING) Test tube starch + 10%HCIstarch + H20 (control) su...
. HYDROLYSIS WITH ACID (Results AFTER HEATING) Test tube starch + 10%HCIstarch + H20 (control) sucrose+10%HCI Sucrose+ H20 (control) 11%HCl Test tube 2: Test tube 3: Test tube 4: l starch t HO(controll l sucrose + lodine Test Observations: _urnyClicu licu e ? lodine Test Conclusions polysaccharide or not polysaccharide Benedict's Test Observations: Br icv Enc Red Blut Red Blue Benedict's Test Conclusions: reducing sugar present or no reducing sugar present Raducn ar a resen Sugar ga Sugar Students will...
. HYDROLYSIS WITH ACID (Results AFTER HEATING) Test tube starch + 10%HCIstarch + H20 (control) su...
. HYDROLYSIS WITH ACID (Results AFTER HEATING) Test tube starch + 10%HCIstarch + H20 (control) sucrose+10%HCI Sucrose+ H20 (control) 11%HCl Test tube 2: Test tube 3: Test tube 4: l starch t HO(controll l sucrose + lodine Test Observations: _urnyClicu licu e ? lodine Test Conclusions polysaccharide or not polysaccharide Benedict's Test Observations: Br icv Enc Red Blut Red Blue Benedict's Test Conclusions: reducing sugar present or no reducing sugar present Raducn ar a resen Sugar ga Sugar Students will...
2130 D. HYDROLYSIS OF DISACCHARIDES and POLYSACOLARIDES Make sure you understand what you are doing bore...
2130 D. HYDROLYSIS OF DISACCHARIDES and POLYSACOLARIDES Make sure you understand what you are doing bore Both the lodine Test and Benedict's best becau described below. Label test tubes so they are t s See the datatable for any that you pre heated in a hot waterbuch e e h 1. You will need 4 test tubes, 1 and 2 forstarch and dowe l of such to test tubes 1 and 2 Add a small pinch of sucrose to test...
Experiment 33 PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Sucrose Carbohyd- Starch...
Experiment 33 PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Sucrose Carbohyd- Starch Fructose Glucose rate class Benedict's test Fehling's test Tollens test Glucose oxidase test Iodine test What class of carbohydrate can be expected to give a positive test with the spot tests below? Benedict's glucose oxidase Fehling's iodine Tollens Hydrolysis of polysaccharides Test Results Results of Result from Benedict's test strips Solution Result from iodine test Initial starch Initial sucrose Initial cellulose Final starch Final...
Pre-Lab Questions (PLQ) for Exp. 9 Carbohydrates (sugars) Use the information in Exp. 9 to answer the following que...
Pre-Lab Questions (PLQ) for Exp. 9 Carbohydrates (sugars) Use the information in Exp. 9 to answer the following questions 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...
Lab question Table 5A-1 Data Table for Benedict's and Lugol's Tests Benedict's Test Lugol's Test Origia...
Lab question
Table 5A-1 Data Table for Benedict's and Lugol's Tests Benedict's Test Lugol's Test Origia Final Color Color Before Boiling Tube After After 1. Water 2. Starch 3. Glucose elue owrm 5. Sucrose 6. Onion juiceGen Crenve 7. Potato slice l ecue | Green | WhLte一一1tra-areen 8. Milk Did the results for each test support your hypotheses? Did your results support your null hypothesis? Did the results for cach test agree with your predictions? Explain any discrepancies. PART 2-LUGOL'S...
#13 c. The 'no acid' test tube (on the right): Slightly opaque 2. Which test tube...
#13
c. The 'no acid' test tube (on the right): Slightly opaque 2. Which test tube gave a positive Benedict's test? #24 #3 test tube light green 13. The purpose of the acid and water bath was to hydrolyze the glycosidic bonds in the disaccharide. Give an equation for the acid-catalyzed hydrolysis of sucrose. Draw the Haworth Formulas and give the name of the monosaccharides produced from hydrolysis. CH OH 0 H H OH H НО H H OH o...
Tests for Carbohydrates F. Testing Foods for Carbohydrates Food Item Tested Benedict's test 070 S...
Tests for Carbohydrates F. Testing Foods for Carbohydrates Food Item Tested Benedict's test 070 Seliwanoff's test Iodine test Carbohydrates present 20 REPORT SHEET Tests for Carbohydrates Water Glucose Fructove Lactove Sucrose Stardh Takues Test Benedict's Test for Reducing Sugars A. 1. Observations 2. Reducing Nonreducing B. Seliwanoff's Test for Ketoses 1. Colors after 1 min 2. Ketose/Aldose C. Fermentation Test 1. Observations 2. Fermentation D. Iodine Test for Polysaccharides 1. Observationsa 2. Amylose (Yes/No) Questions and Problems 01 From the...
Please, fill in first table for Seliwanoff's Test for Ketoses. Additional info is found in the...
Please, fill in first table for Seliwanoff's Test for Ketoses.
Additional info is found in the images following table. (Second
table is info and image following).
Part C: Seliwanoff's Test for Ketoses Seliwanoff's Test Results Test Tube Sample Prediction Ketose? (Y/N) Observations Distilled water Peach / no change Glucose Peach to red slowly Fructose deep red solution very quickly Sucrose deep red solution quickly Lactose Peach to red slowly Starch Peach to red very slowly Mystery sample Peach to red...
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...
. HYDROLYSIS WITH ACID (Results AFTER HEATING) Test tube starch + 10%HCIstarch + H20 (control) sucrose+10%HCI Sucrose+ H20 (control) 11%HCl Test tube 2: Test tube 3: Test tube 4: l starch t HO(controll l sucrose + lodine Test Observations: _urnyClicu licu e ? lodine Test Conclusions polysaccharide or not polysaccharide Benedict's Test Observations: Br icv Enc Red Blut Red Blue Benedict's Test Conclusions: reducing sugar present or no reducing sugar present Raducn ar a resen Sugar ga Sugar Students will...
. HYDROLYSIS WITH ACID (Results AFTER HEATING) Test tube starch + 10%HCIstarch + H20 (control) sucrose+10%HCI Sucrose+ H20 (control) 11%HCl Test tube 2: Test tube 3: Test tube 4: l starch t HO(controll l sucrose + lodine Test Observations: _urnyClicu licu e ? lodine Test Conclusions polysaccharide or not polysaccharide Benedict's Test Observations: Br icv Enc Red Blut Red Blue Benedict's Test Conclusions: reducing sugar present or no reducing sugar present Raducn ar a resen Sugar ga Sugar Students will...
2130 D. HYDROLYSIS OF DISACCHARIDES and POLYSACOLARIDES Make sure you understand what you are doing bore Both the lodine Test and Benedict's best becau described below. Label test tubes so they are t s See the datatable for any that you pre heated in a hot waterbuch e e h 1. You will need 4 test tubes, 1 and 2 forstarch and dowe l of such to test tubes 1 and 2 Add a small pinch of sucrose to test...
Experiment 33 PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Sucrose Carbohyd- Starch Fructose Glucose rate class Benedict's test Fehling's test Tollens test Glucose oxidase test Iodine test What class of carbohydrate can be expected to give a positive test with the spot tests below? Benedict's glucose oxidase Fehling's iodine Tollens Hydrolysis of polysaccharides Test Results Results of Result from Benedict's test strips Solution Result from iodine test Initial starch Initial sucrose Initial cellulose Final starch Final...
Pre-Lab Questions (PLQ) for Exp. 9 Carbohydrates (sugars) Use the information in Exp. 9 to answer the following questions 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...
Lab question
Table 5A-1 Data Table for Benedict's and Lugol's Tests Benedict's Test Lugol's Test Origia Final Color Color Before Boiling Tube After After 1. Water 2. Starch 3. Glucose elue owrm 5. Sucrose 6. Onion juiceGen Crenve 7. Potato slice l ecue | Green | WhLte一一1tra-areen 8. Milk Did the results for each test support your hypotheses? Did your results support your null hypothesis? Did the results for cach test agree with your predictions? Explain any discrepancies. PART 2-LUGOL'S...
#13
c. The 'no acid' test tube (on the right): Slightly opaque 2. Which test tube gave a positive Benedict's test? #24 #3 test tube light green 13. The purpose of the acid and water bath was to hydrolyze the glycosidic bonds in the disaccharide. Give an equation for the acid-catalyzed hydrolysis of sucrose. Draw the Haworth Formulas and give the name of the monosaccharides produced from hydrolysis. CH OH 0 H H OH H НО H H OH o...
Tests for Carbohydrates F. Testing Foods for Carbohydrates Food Item Tested Benedict's test 070 Seliwanoff's test Iodine test Carbohydrates present 20 REPORT SHEET Tests for Carbohydrates Water Glucose Fructove Lactove Sucrose Stardh Takues Test Benedict's Test for Reducing Sugars A. 1. Observations 2. Reducing Nonreducing B. Seliwanoff's Test for Ketoses 1. Colors after 1 min 2. Ketose/Aldose C. Fermentation Test 1. Observations 2. Fermentation D. Iodine Test for Polysaccharides 1. Observationsa 2. Amylose (Yes/No) Questions and Problems 01 From the...
Please, fill in first table for Seliwanoff's Test for Ketoses.
Additional info is found in the images following table. (Second
table is info and image following).
Part C: Seliwanoff's Test for Ketoses Seliwanoff's Test Results Test Tube Sample Prediction Ketose? (Y/N) Observations Distilled water Peach / no change Glucose Peach to red slowly Fructose deep red solution very quickly Sucrose deep red solution quickly Lactose Peach to red slowly Starch Peach to red very slowly Mystery sample Peach to red...
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