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the sugar glucose
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∙ 12y ago
Wiki User
∙ 11y agoglucose
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If biuret reagent turns purple what substance is present?
food that has protein like milk will cause the Biuret solution to turn purple.
What reagent is used to test for starch?
The reagent that is used to test for starch is a mixture of iodine and potassium iodide in water, or an Iodine - KI reagent. If the reagent turns blue-black in color, then starch is present.
What is million reagent?
You probably mean Millon's reagent. Millon's reagent is a solution of mercury in nitric acid which is used as a test for the amino acid tyrosine. Since proteins contain tyrosine, it is also used as a test for protein. When the test solution is boiled with Millon's reagent a white precipitate (solid) is produced which coagulates and turns red.
What substance is used to test for starch?
The presence of starch can be tested with the help of Iodine. Similarly Benedict's test solution is also used to detect the presence of starch.
How does the Gram stain work What is happening as each reagent is used?
The positive turn purple and the negative turns red-colored. The positive is purple because the stain is able to pass through the thick peptoglycan wall where as the negative is red/pink because the stain can't get through the thick lipid layer (Membrane) to get to the thin peptoglycan layer.
What substance is present when Benedict reagent turns red?
glucose
If biuret reagent turns purple what substance is present?
food that has protein like milk will cause the Biuret solution to turn purple.
What reagent is used to test for starch?
The reagent that is used to test for starch is a mixture of iodine and potassium iodide in water, or an Iodine - KI reagent. If the reagent turns blue-black in color, then starch is present.
Using benedict's reagent what method is used to find protein?
If the color is blue, it means that protein is present, if it turns orange, protein is not present.
If iodine solution turns blue-black what substance is present?
Starch.
When iodine solution turns blue-black what substance is present?
Starch
When iodine solution turns blue black what substance is present?
Starch
Which white powder turns orange in benedicts solution?
Starch solution.
What would the result of crackers in benedicts test?
Turns blue black
What chemical reagent of protein?
Biuret reagent is used to test for protein in urine. It is a common test that students in biology class perform. Urine is added to a test tube, followed by approximately the same amount of Biuret reagent. If the solution turns lavender this means that there are proteins present in the urine.
What happens when iodine solution turns blue-black what substance is present?
Starch is present. Check a potato with iodine.
When using Biuret reagent what indicates the presence of proteins?
Biuret solution turns a shade of purple if proteins are present. Specifically, it turns a shade of purple if peptide bonds are present. A peptide bond is the bond formed between amino acids.
