0
The positive result- the resulting blue solution, indicates that the test carbohydrates is a pentose(ribose for example). The blue color is due to the iron content of ferric chloride.
Wiki User
∙ 14y ago
Bial's orcinol test is used to detect the presence of pentoses (such as ribose and deoxyribose) in samples. When pentoses react with orcinol in the test, a blue-green color is produced. This test is commonly utilized in the analysis of carbohydrates, nucleic acids, and other biological molecules.
Wiki User
∙ 15y agoA test for pentoses with orcinol.
Add your answer:
Earn +20 pts
What is the Chemical equation of bials test?
The Biuret test detects the presence of peptide bonds in a protein. The chemical equation for the Biuret test involves the reaction of Cu2+ ions with peptide bonds, forming a violet-colored complex. The equation can be represented as: Cu2+ + peptide bond → purple complex
What test is specific for pentose?
The specific test for pentoses is the Bial's test. This test involves heating the sugar with orcinol and an acidic solution, resulting in a blue-green color if pentoses are present.
What is the creatinine clearance test?
The creatinine clearance test measures how well the kidneys are filtering waste products from the blood. It involves collecting urine samples over a period of time to determine the amount of creatinine excreted. This test is used to assess kidney function and detect any abnormalities.
How are controls used in urine testing?
Controls in urine testing are used to ensure the accuracy and reliability of the test results. They are samples with known concentrations of the analyte being tested for, used to validate the test procedure and equipment. Control samples are run alongside patient samples to verify that the test is working correctly and to detect any errors in the testing process.
What does drug screen abuse urine ethanol mean?
"Drug screen abuse urine ethanol" typically refers to testing urine samples for the presence of ethanol, which is the type of alcohol found in alcoholic beverages. This type of screening is commonly used to determine whether a person has been consuming alcohol, which may be important for various reasons such as assessing sobriety or compliance with abstinence requirements.
What does bials orcinol determine in nucleic acid?
Bial's test is used to determine the presence of a pentose sugar. For example, the sugar ribose would turn green (positive) and the sugar glucose would turn brown or yellow (negative). Nucleic acids (DNA and RNA) both contain a suger. RNA contains ribose, so it should have a positive orcinol test. DNA contains deoxyribose, which should have a weak reaction, yielding what appears to be a negative result.
What is the discussion of bials test?
discussion abut bial test ??
Positive result for bial-orcinol test?
bluish color if pentose is present.
What is the reaction mechanism of orcinol in the estimation of RNA?
Furfural cannot be formed from ribosides until the glycosidic linkage has been split; the purine-ribose links of RNA are easily hydrolysed by hot acid, while the pyrimidine-ribose links are much more resistant, and the orcinol method is commonly supposed to determine only the purine-bound ribose of RNA.
How would you be able to determine from where nutrient influx comes?
You can test the nutrient influx by using a water test. You will determine the historical patterns and then collect water samples from the surface and subsurface layers along the estuaries.
What is the Chemical equation of bials test?
The Biuret test detects the presence of peptide bonds in a protein. The chemical equation for the Biuret test involves the reaction of Cu2+ ions with peptide bonds, forming a violet-colored complex. The equation can be represented as: Cu2+ + peptide bond → purple complex
What test is specific for pentose?
The specific test for pentoses is the Bial's test. This test involves heating the sugar with orcinol and an acidic solution, resulting in a blue-green color if pentoses are present.
Will a DNA test tell if I cheated?
No, a DNA test is used to determine genetic relationships between individuals, such as paternity or ancestry, by comparing DNA samples. It will not conclusively indicate if you have cheated on someone.
How do you determine if methane and other organics are leaching out of a landfill?
Monitor the area using a methane meter or explosimeter, and test samples of seepage and water run-off.
Is Paired samples T-test an example of nonparametric tests?
A paired samples t-test is an example of parametric (not nonparametric) tests.
Which type of diagnostic test should you do to determine drug and toxity?
Urine, saliva, stomach cotents, and blood samples can be used to determine both, depending on the drug itself as well as how much of the drug is still preset in the body.
What are the methods used for identifying motility?
There are two basic method to determine motility in a bacterial sample. These samples have similar biochemical identifiers. The first test is a simple drop test. The second method employs a motility medium
