Which food samples are positive for Iodine test? 2. Which foods tested in table 1 will the body use for a quick burst of energy? Which could be used for energy when no carbohydrates are available? 3. Why it is that Benedict’s test gives a negative (-) result with sucrose or table sugar?
Which food samples are positive for Iodine test? 2. Which foods tested in table 1 will the body use for a quick burst of energy? Which could be used for energy when no carbohydrates are available? 3. Why it is that Benedict’s test gives a negative (-) result with sucrose or table sugar?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Which food samples are positive for Iodine test?
2. Which foods tested in table 1 will the body use for a quick burst of energy? Which could be used for energy when no carbohydrates are available?
3. Why it is that Benedict’s test gives a negative (-) result with sucrose or table sugar?
Transcribed Image Text:Procedure:
1. Using the table below answer the guide questions that follows.
Table 1 Results for Carbohydrates Tests
Test for Simple/ Reducing
Sugars/ Benedict's Test
Turns brown orange with
precipitate
Turns orange with
precipitate
Turns orange with
precipitate
Turns brown orange with
precipitate
Blue
Blue
Food Sample
lodine Test
Apple juice
Cooked potatoes
Cooked instant
noodles
Soft drink
Table Sugar
Soya bean milk
Note: Positive Test for Benedict's solution changes from Blue (Negative) to Green (very small amount
of reducing sugar), Yellow (higher amount of reducing sugar) Orange or Dark Red (highest amount of
reducing sugar) the change in color is due to the formation of the red precipitate, CU:O.
Table 2 Results of the Ethanol Emulsion Test for Lipids
Food Sample
Layer of Cloudy White
Suspension
Colorless
Oil
Peanut Butter
Egg
Fried Chicken
Butter
Milk
Burger
Mashed Potato
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