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Xanthoproteic test: a reaction due to the prescence of phenyl group (-C6H5) in the protein molecules. it involves the hnitration of the phenyl rings presnt in the aromatic amino acids such as tyrosine, phenylalanine, and tryptophan, forming yellow nitro-substitution products that turn orange when alkali is added (salt formation) Heller's ring test: this is usd clinically to detect the prescence of albumin in urine. so.... that's basically it... i hope i helped... ^^
What else can I help you with?
Will adrenaline give a positive xanthoproteic test?
No, adrenaline will not give a positive xanthoproteic test. The xanthoproteic test is used to detect the presence of proteins, not hormones like adrenaline. Adrenaline is a hormone that is involved in the body's fight-or-flight response, and it does not react in the same way as proteins do in the xanthoproteic test.
All amino acid having an aromatic ring give a positive xanthoproteic test under identical condition?
No, not all amino acids with an aromatic ring give a positive xanthoproteic test. The xanthoproteic test is mainly positive for amino acids containing aromatic rings with phenolic groups such as tyrosine and phenylalanine. Aromatic amino acids like tryptophan do not give a positive xanthoproteic test under identical conditions.
What are the reagents used for Heller's ring test?
The reagents used in Heller's ring test are concentrated nitric acid and ferric chloride solution. After adding these reagents to a mixture containing albumin, a white ring forms at the point of contact if albumin is present.
Why is the xanthoproteic test for phenol negative?
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.
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.
What are the results when vasopressin is tested with xanthoproteic?
xanthoproteic test is used to detect the presence of aromatic amino acid in this nitration of an benzee ring with nitric acid takes place.
Heller's ring test?
Heller's Ring test is used to clinically detect the presence of albumin in urine. The presence of albumin is indicated by the formation of white ring at the junction of the solution and concentrated nitric acid
Do you expect adrenaline to give a positive xanthoproteic test?
No, adrenaline is not expected to give a positive xanthoproteic test. The xanthoproteic test is used to detect the presence of proteins containing aromatic amino acids, which react with nitric acid to form a yellow-colored compound. While adrenaline does contain an aromatic ring, it is classified as a catecholamine, not a protein, and therefore does not typically produce a positive result in this test.
Will adrenaline give a positive xanthoproteic test?
No, adrenaline will not give a positive xanthoproteic test. The xanthoproteic test is used to detect the presence of proteins, not hormones like adrenaline. Adrenaline is a hormone that is involved in the body's fight-or-flight response, and it does not react in the same way as proteins do in the xanthoproteic test.
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.
Why phenylalanine give negative result with xanthoproteic test?
Phenylalanine gave a yellow to orange color in xanthoproteic test which means it is positive.
Is albumin positive to xanthoproteic test?
Yes, albumin is positive to the xanthoproteic test. The xanthoproteic test is used to detect the presence of proteins containing aromatic amino acids, such as albumin, by forming a yellow color when treated with nitric acid.
All amino acid having an aromatic ring give a positive xanthoproteic test under identical condition?
No, not all amino acids with an aromatic ring give a positive xanthoproteic test. The xanthoproteic test is mainly positive for amino acids containing aromatic rings with phenolic groups such as tyrosine and phenylalanine. Aromatic amino acids like tryptophan do not give a positive xanthoproteic test under identical conditions.
What is the medical relevance of heller's test?
Heller's test is commonly used to test for the presence of proteins in urine. The presence of albumin is indicated by formation of a white ring at the junction of the solution and a concentrate solution of nitric acid.
What tripeptide will give a positive xanthoproteic test?
Phenylalanine. When phenylalanine is subjected to a xanthoproteic test, it will produce a yellow solution due to the reaction of the aromatic ring with nitric acid, indicating the presence of phenyl group in the tripeptide.
What are the reagents used for Heller's ring test?
The reagents used in Heller's ring test are concentrated nitric acid and ferric chloride solution. After adding these reagents to a mixture containing albumin, a white ring forms at the point of contact if albumin is present.
Why is the xanthoproteic test for phenol negative?
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.
