Question

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 Which carbohydrates are pentoses? Which are hexoses? Why must this test be time controlled? 7. Seliwanoff Test Record your observations as positive (+) or negative (-) for each carbohydrate; also, indicate any colors observed. 7. starch 4. fructose 1. xylose 8. control 5. sucrose 2. glucose 6. lactose 3. galactose

Answer 1

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