6.
| CARBOHYDRATE | COLOUR TO BENEDICT | REDUCING/NONREDUCING |
| 1- STARCH | NO COLOUR | NON REDUCING |
| 2-SUCROSE | NO COLOUR | NON REDUCING |
| 3-LACTOSE | BRICK RED PPT | REDUCING |
| 4-GLUCOSE | REDDISH PPT | REDUCIN |
| 5-FRUCTOSE | BRICK RED PPT | REDUCING |
REDUCING Sugar are those which have free aldehyde group present in it . NONREDUCING which do not have fre e aldehyde group .
Reducing sugra gives the benedict test and colour change is from blue to green -----orange------yellow----dark red depending upon amount of sugar present in the sample.
Reducing and Nonreducing Carbohydrates 6. Carbohydrate Color after Benediet's AssayReducing or No...
Reducing and Nonreducing Carbohydrates 6. Carbohydrate Color after Benediet's AssayReducing or Nonreducing? 1-starch 2-sucrose 3-lactose 4-glucose 5-fructose Starch Hydrolysis: Enzyme vs. Acid Catalysis Color of Iodine Test (none, some, or a lot) (no, somewhat, or completely) Is Intact Starch Still Present? Was Hydrolysis Successful? Catalyst Used KI sol'n only NONE N/A (negative control) 1-acid 2-enzyme nore→ Exp 10 Carbohydrates-page 13
Report Sheet Carbohydrates Results of Carbohydrate Tests D. Benedict's Test E. Seliwano T Glucose e rmentation Test G. Todine Test Fructose Sucrose Lactose Starch Water Questions and Problems 0.6 From the results above, list the sugars that are reducing sugars and those that are not Reducing sugars Nonreducing sugars Q.7 What sugars are ketoses? Q.8 What sugars give a positive fermentation test? Q.9 Which carbohydrates give a blue-black color in the iodine 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...
369 Name Locker Number Date Plesse print: last name first REPORT SHEET (continued): Experiment 26 Hydrolysis of a Disaccharide 5. Does sucrose give a positive Benedict test? Why or why not? After hydrolysis, did sucrose give a positive Benedict test? Explain your answer. 6. Bial Test What color indicates a positive test for a pentose sugar? Record your observations +or - for each carbohydrate in the table below: 1. xylose 3. fructose 5. starch 2. glucose 6. control 4. sucrose...
Carbohydrates What is the purpose of this experiment? Please write one paragraph in complete sentences. A. SOLUBILITY Conclusion Carbohydrate Starch Observation(s) acody lwhite Glucose cloor Clear Sucrose B. BENEDICT'S AND IODINE TESTS Benedict's Test 1% Sugar/Starch Observation(s) and lodine Test Observation(s) Conclusion and Conclusion Glucose Yellow light no change orange Iclear Fructose no change Maltose light geen clear no change Green I clear no charge Lactose purple clear Sucrose no chonge sta blue clear Starch black Iclumps Lab Report: Carbohydra
please help me answer the following questions
33 DE CARBOHYDRATES THE Starch Carbohyd- rate class monosacchetides Precipitate PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Glucose Fructose Sucrose Benedict's Grick red Brick red negative negative test blues (blue) Fehling's Positive Positive Negativ test burnt orange brown l Tollens negative regate negative test clearish cleau clear Glucose oxidase test Iodine dark test blue negative | reaction mono saccharid sitive What class of carbohydrate can be expected to give...
1. Which of the following carbohydrates contain ketohexoses? a. starch b. sucrose c. cellulose d. fructose d. lactose 2. Which of the following functional groups in a carbohydrate are able to be oxidized to carboxylic acids? a. ketones that are rearranged in solution b. ketones that are not rearranged in solution c. aldehydes d. alcohols 3. Which of the following carbohydrates were reducing sugars? a. lactose b. sucrose c. fructose d. starch e. cellulose 4. Why does lactose give a...
1-10 help!!!
1) A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a A) monosaccharide. B) disaccharide. C) polysaccharide. D) starch. 2) A reducing sugar gives a precipitate of silver metal with Benedict's reagent. a. True b. False 3) Cellulose will give a positive Benedict's test. Sa TrueS b. False 4) The product of oxidation of an aldose is a carboxylic acid. Sa True b. False 5) Maltose is a reducing sugar. a. True b....
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...
If bacteria oxidize the the Oxidase test reagent the reagent will turn Bright Pink in color. a. Agree b. Disagree Cytochrome oxidase is an enzyme found in some bacteria that transfers electrons to oxygen. a. Agree b. Disagree Phenol Red pH indicator will turn what color under alkaline conditions? a. Yellow b. Blueish Green c. Cherry Red or Bright Pink d. Red Glucose, Sucrose and Lactose are a. substrates for amino acid fermentation b. substrates for carbohydrate fermentation c. substrates...