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Testing Foods for Glucose

Testing Foods for Glucose. Lesson 7 Food Chemistry. Background. When we tested liquids for glucose, you will recall there were liquids that tested positive for glucose. Remember that there are variables that will effect your test results in any testing situation. Materials. 1 lab bag

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Testing Foods for Glucose

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  1. Testing Foods for Glucose Lesson 7 Food Chemistry

  2. Background • When we tested liquids for glucose, you will recall there were liquids that tested positive for glucose. • Remember that there are variables that will effect your test results in any testing situation.

  3. Materials • 1 lab bag • food bag • 2 pairs of forceps • 8 spoons • 1 package of toothpicks • 2 test trays # 1-10 • 9 glucose test strips

  4. Testing Review What constitutes a positive test result? How is that recorded? What constitutes a negative result? How is that recorded? Answer the Pre-Lab question in your LRB.

  5. Class Foods Prediction Test Table

  6. Procedure • Place food in proper section of the testing tray that corresponds with the number on the food container. • Add 2 drops of water into each section and stir with a toothpick. • Wait at least two minutes. • Use the forceps to put one strip of glucose test paper in each section. Make sure at least half of the test paper is wet. • Compare the results to your control and record your observations.

  7. Class Foods Test Table

  8. Post-Lab • Answer the Post-Lab questions in your LRB. • Arrange testing strips in order to show which indicate the most to least glucose on your index card. Be sure to label these! • Answer in your LRB: • What are five facts you’ve learned about carbohydrates? (paragraph!)

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