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WorksheetsChem 1163L Color Reactions
Total questions: 24
Worksheet time: 18mins
This test is used to detect presence of free alpha amino group in amino acids.
Biuret test
Sakaguchi test
Ninhydrin test
Millon test
Which among the following amino acids will yield a positive result with Millon's test
tyrosine
arginine
valine
isoleucine
Which among the following tests is considered to be a general test for amino acids?
Sakaguchi test
Hopkins-Cole test
Biuret test
Millon test
Which amino acid will test positive with Millon's test?
What functional group is being tested in the Adamkiewicz test?
phenol ring
aromatic ring
guanido group
indole ring
Which set of reagents will confirm the presence of phenol ring or phenylhydroxy ring in the fish extract?
NaOH, Pb(OAc)2
NaOH, NaOBr
glacial acetic acid, concentrated H2SO4
mercuric nitrate in nitric acid
What is the positive result for the presence of sulfur in the fish sample?
formation of black precipitate
formation of yellow-orange solution
formation of red-violet ring at the interface
formation of red solution
Which set of reagent will the given amino acid structure test positive with?
conc. HNO3, NaOH
NaOH, NaOBr
Glyoxylic acid, conc. H2SO4
NaOH, Pb(OAc)2
In which of the following test will phenylalanine, tyrosine, and tryptophan test positive?
Xanthoproteic test
Millon's test
Adamkiewicz test
Lead acetate test
Which amino acid has an indole ring in its structure?
The picture above is
General structure of an protein
General structure of an peptide
General structure of an amino acid
All of the above
Proteins are polymers of __________.
amino acids
fatty acids
carboxylic acids
nucleic acids
Enzymes are ________ that act as ________.
proteins, catalysts
amino acids, proteins
proteins, amino acids
All amino acids have the same basic structure. Which part of the amino acid makes each each one unique?
amino group
carboxyl group
R-group (side chain)
Hemoglobin is a protein that binds to oxygen and helps carry it in the blood and deliver it to other parts of the body. This is an example of what type of protein?
Transport
Signaling
Storage
Contractile
What are proteins made of?
carbon, and hydrogen
carbon, hydrogen, and oxygen
carbon, hydrogen, oxygen and nitrogen
carbon, hydrogen, oxygen, nitrogen and phosphorus
Aromatic amino acids include
phenyl alanine, tyrosine & tryptophan
phenyl alanine, serine & tryptophan
threonine, tyrosine & tryptophan
aspergine, tyrosine & tryptophan
which is a basic amino acid
alanine
histidine
serine
proline
which is not a essential amino acid
methionine
alanine
arginine
lysine
What is an amino acid , which contains a "Base" side chain ?
What is an amino acid , which contains a "Acidic" side chain ?
What is the amino acid which contains smallest side chain ?
Alanine (A) - Ala
Serine (S) - Ser
Glycine (G) - Gly
Tyrosine (Y) - Tyr
