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Does Benedict test indicate monosaccharides polysaccharides and disaccharides?
Wiki User
∙ 8y ago
The Benedict test is useful for monosaccharides and disaccharides.
Wiki User
∙ 7y ago
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How can you tell by using iodine if a sugar is a monosaccharide disaccharide or polysaccharide?
Adding iodine to the solution will turn it a deep blue which indicate presence of polysaccharides.
Would glucose solution produce a positive Benedicts test?
No, Benedicts reagent will show positive results if the carbohydrate is a reducing sugar. You will know if it is positive if the sample will turn from blue to green then to orange when you are cooling the solution, which is the last step when you are performing the benedicts test for carbohydrates.
What does the biohazard symbol indicate?
it indicate where and what to drop in
The precipitation of a solid can indicate a?
it can indicate a physical change
What do shaded areas on a weather map indicate?
I believe they indicate storms.
How can you tell by using iodine if a sugar is a monosaccharide disaccharide or polysaccharide?
Adding iodine to the solution will turn it a deep blue which indicate presence of polysaccharides.
How does Benedicts test indicate hydrolysis of sucrose and starch?
Benedict 's solution contains Copper , which can accept electrons from reducing sugars and consequently change color. A positive Benedict's sugar test will produce an orange to brick-red color. Reducing sugars have either a free aldehyde functional group or a free ketone functional group as part of their molecular structure; starches and other polysaccharides lack these functional groups . If Benedict's test changes color ( pos. reaction ) polysaccharides must be hydrolyzed.
Would you be able to distiguish maltose from lactose in a unknown sample from doing barfoed's test?
Both maltose aswell as lactose are disaccharides, where maltose is made up of two glucose units, whereas lactose is made up of 1 unit of glucose and 1 unit of galactose. Barfoed's test answers only for mono and disaccharides. Presence of red precipitate would indicate a positive result for monosaccharides. Thus doing Barfoed's test does not distinguish between maltose and galactose since both are disaccharides.
What does a negative Benedicts test indicate?
A negative Benedict's test would indicate that there isn't any presence of reducing sugars in that particular substance.
Would glucose solution produce a positive Benedicts test?
No, Benedicts reagent will show positive results if the carbohydrate is a reducing sugar. You will know if it is positive if the sample will turn from blue to green then to orange when you are cooling the solution, which is the last step when you are performing the benedicts test for carbohydrates.
What does a positive Benedict test indicate?
Benedict's solution is originally blue. Any change in color indicates presence of a reducing sugar. The intensity in color change is proportional to the concentration of the sugar. If there is enough sugar, the color changes from blue to green to yellow to orange to brick red.
What does iodine and Benedict's test indicate?
Iodine tests for the presence of starch. It is brownish yellow in color if there is no starch present, and bluish black if starch is present. Benedict's solution is used to test for the presence of a reducing sugar, changing from its usual color blue to green to brick red if reducing sugars are present. No reducing sugar solution stays blue.
Is Saint Benedicts Preparatory School considered traditional catholic?
To receive a meaningful answer, you are going to have to indicate which St. Benedict's Preparatory School you are talking about. Please give a country and an address (like a town and state if you are talking about the United States).
What part of speech is the word indicate?
The word "indicate" is a verb.
What do you understand by D and L forms of mono saccharides?
D and L forms of monosaccharides refer to the configuration of the highest-numbered chiral carbon in a sugar molecule. In the D form, the hydroxyl group on the highest-numbered chiral carbon is on the right side, while in the L form, it is on the left side. The designation of D or L does not indicate the direction of optical rotation.
What does the biohazard symbol indicate?
it indicate where and what to drop in
What is the meaning of the Roman numeral after the names of popes?
In most cases it serves to indicate the number of popes who have taken that name. Benedict XVI means that there were 15 popes prior to the present one who have taken the name Benedict. Given the long history of the church and the vagaries of human history (to say nothing of the controversial anti-popes) the numbers are not always accurate. If I am not mistaken, the popes named John have not been accurately counted. There may be others. But there is really no significance beyond that; it's just a way to tell them apart.
