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What else can I help you with?
Does adrenaline give a positive result to xanthoproteic test?
Yes, adrenaline gives a positive result in the xanthoproteic test. This test is used to detect the presence of aromatic amino acids, such as tyrosine and tryptophan, by reacting them with concentrated nitric acid, which produces a yellow coloration. Since adrenaline contains a phenolic structure derived from tyrosine, it reacts positively in this test, indicating the presence of these aromatic compounds.
Do albumin gives a positive xanthoproteic test?
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
Is egg albumin positive to millon test?
Yes, egg albumin is positive for the Millon's test due to the presence of aromatic amino acids like tyrosine, which react with Millon's reagent to produce a red color.
What is responsible for the color reaction for the millon'e test?
The color reaction in the Millon's test is due to the formation of a red complex between phenolic hydroxyl groups of tyrosine and Millon's reagent (mercury in nitric acid solution). This complex forms as a result of the oxidative reaction between the tyrosine residues and the reagent.
What amino acid is the precursor to thyroxin?
The amino acid precursor to thyroxine (T4) is tyrosine. Tyrosine is first converted into diiodotyrosine, which then further combines to form thyroxine.
What is the positive result of pauly's test?
Phenylalanine Tyrosine Tryptophan Histidine
Is casein positive to millon's test?
Yes, because casein is one of the protein that makes up milk. And when milk is denatured (by heat, or by any means), the denatured protein is tyrosine-which is the only protein positive for millon's test.
Which test is suitable to test for tyrosine in urine?
The suitable test for detecting tyrosine in urine is the Ferric Chloride Test. This test involves adding ferric chloride to a urine sample; a positive result is indicated by the formation of a violet or purple color, which signifies the presence of tyrosine. Additionally, more advanced methods, such as high-performance liquid chromatography (HPLC), can be used for accurate quantification and analysis of tyrosine levels in urine.
Positive result for millon's test?
Millon's test is given by any compound containing a phenolic hydroxy group. Consequently, any protein containing tyrosine will give a positive test of a pink to dark-red color. The Million reagent is a solution of mercuric and mercurous ions in nitric and nitrous acids (CAUTION: MILLON'S REAGENT IS HIGHLY TOXIC AND HIGHLY CORROSIVE). The red color is probably due to a mercury salt of nitrated tyrosine.
Does adrenaline give a positive result to xanthoproteic test?
Yes, adrenaline gives a positive result in the xanthoproteic test. This test is used to detect the presence of aromatic amino acids, such as tyrosine and tryptophan, by reacting them with concentrated nitric acid, which produces a yellow coloration. Since adrenaline contains a phenolic structure derived from tyrosine, it reacts positively in this test, indicating the presence of these aromatic compounds.
What amino acid will yield a positive result with millon's test?
Tyrosine. Millon's Reagent-a solution that is usually made by dissolving mercury in concentrated nitric acid and diluting with water and that when heated with phenolic compounds gives a red coloration used as a test especially for tyrosine and proteins containing tyrosine. (from merriam-webster's medical dicitonary) i hope this will help you.
Do albumin gives a positive xanthoproteic test?
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
Is egg albumin positive to millon test?
Yes, egg albumin is positive for the Millon's test due to the presence of aromatic amino acids like tyrosine, which react with Millon's reagent to produce a red color.
What functional group gives a positive test in the xanthoproteic test?
The phenolic functional group gives a positive test in the xanthoproteic test. This test involves the reaction of phenolic compounds with concentrated nitric acid, resulting in a yellow coloration due to the formation of nitrophenols.
Would phenol give positive results with millon's test explain your answer?
No, phenol would not give a positive result with Millon's test. Millon's test specifically detects phenolic compounds that have a hydroxyl group attached to a benzene ring, but phenol itself lacks the necessary structural modifications (like being part of a phenolic compound such as tyrosine) to react positively. The test is primarily used to identify the presence of tyrosine and similar amino acids, which undergo a specific reaction to form a red complex.
What components of protein give a positive test with Millon's reagent and on what is this reaction based?
The phenolic and tyrosine residues in proteins give a positive test with Millon's reagent. This reaction is based on the oxidation of phenolic groups by mercuric nitrate in the reagent to form a red-colored complex.
In the ninhydrin test why do absorbance values for glycine and tyrosine differ?
The absorbance values for glycine and tyrosine differ in the ninhydrin test because tyrosine contains an aromatic ring that reacts with ninhydrin to form a colored product, while glycine lacks this structure. The presence of the aromatic ring in tyrosine leads to a more intense color formation, resulting in a higher absorbance value compared to glycine.
