Indicate whether the following statements apply to digestion of carbohydrate, protein, or triglyceride (fat) If the...

Indicate whether the following statements apply to digestion of carbohydrate, protein, or triglyceride (fat) If the statement applies to more than one indicate which ones. (You can answer just with the words carbohydrates, proteins, or fats?

fill in blank below

_________________ a negative result resulted in the formation of a blue-black color when iodine was added to the test solution

Expert Solution

The presence of carbohydrates and fats can be tested using iodine. However, Iodine reacts only with carnohydrates (starch).

When iodine is added to a starch solution, it turns blue-black. This is a positive reaction.

Iodine is also used to find the saturation content of a fat (C=C). When iodine chloride (ICl) is added to a fat solution, it reacts with unsaturated carbons. After the reaction is complete, potassium iodide (KI) is addded to the reaction that reacts with the remaining unreacted iodine in the tube, resulting in the formation of molecular iodine (I2). Now, starch is used as an indicator, which reacts with liberated iodine to give blue-black color, which is a kind of negative test.

iodine is not added to protein; But iodine bound to protein (thyroxine hormones) is tested.

a negative result resulted in the formation of a blue-black color when iodine was added to the test solution- fats

Sydney Mullin answered 1 year ago

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