NUTRITION
CARBOHYDRATES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What indicator do we use to test for the presence of monosaccharides (glucose)?
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Biuret’s
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Sudan III
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Lugol’s/Iodine
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Benedict’s
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Explanation:
Detailed explanation-1: -We can use a special reagent called Benedict’s solution to test for simple carbohydrates like glucose. Benedict’s solution is blue but, if simple carbohydrates are present, it will change colour – green/yellow if the amount is low and red if it is high.
Detailed explanation-2: -Benedict’s solution can be used to test for the presence of glucose in urine. When glucose is mixed with Benedict’s reagent and heated, a reduction reaction causes the Benedict’s reagent to change color. The color varies from green to dark red (brick) or rusty-brown, depending on the amount of and type of sugar.
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