Describe how you would test it for the presence of lipids

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Reference no: EM133412389

Assignment:

Naomi Gonzales

Section A.1- Test for Sugars using Benedict ' s solution

Let's suppose you are teaching science in a part of the world without easy access to a doctor and you're worried that you may have developed diabetes. (Diabetics are unable to regulate blood glucose levels, and glucose accumulates in urine.) How could you perform a test to gain an indication of whether or not you have diabetes?

Urinate in a cup and add Benedict solution. If it changes then you may have diabetes.

2. The test tubes in the photograph ( open your lab manual to see the picture) contain Benedict's solution and two unknown substances that have been heated. What do the results indicate for each substance?

3. How could you verify that a soft-drink container contains diet soft drink rather than soft drink sweetened with fructose?

A.2. Test for Starch Using Lugol's Solution

Observe the photomicrograph accompanying this question. This thin section of a potato tuber has been stained with Lugol's iodine solution. When you eat french fries, the potato material is broken down in your small intestine into what kind of small subunits?

B.2. Sudan IV Test

The test tube in the photograph contains water at the bottom and another substance that has been stained with Sudan IV at the top. What is the macromolecular composition of this stained substance?

You are given a sample of an unknown food. Describe how you would test it for the presence of lipids.

What is the purpose of the distillated water sample in each of the chemical tests in this exercise?

Reference no: EM133412389

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