PLANT PHYSIOLOGY
PHOTOSYNTHESIS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Iodine
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Benedicts
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Biuret
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Sudan Red
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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: -The Benedict’s Solution provides a test for the presence of simple sugars. If sugar is present, the Benedict’s Solution will turn color (shades of yellow, orange, brown).
Detailed explanation-3: -In lab, we used Benedict’s reagent to test for one particular reducing sugar: glucose. Benedict’s reagent starts out aqua-blue. As it is heated in the presence of reducing sugars, it turns yellow to orange. The “hotter” the final color of the reagent, the higher the concentration of reducing sugar.
Detailed explanation-4: -Benedict’s solution can be used to test for the presence of glucose in urine. Some sugars such as glucose are called reducing sugars because they are capable of transferring hydrogens (electrons) to other compounds, a process called reduction.