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What amino acid will yield a positive result with lead acetate test?
Wiki User
∙ 11y ago
Cystein and methionie
Wiki User
∙ 11y ago
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What is the test results for iodine test?
Iodine test is a test used to determine the presence of starch in a particular substance.A positive result will yield a black color.For example, adding a few drops of iodine solution to potato will stain the amylocytes black since these are the starch-containing structures of potatoes as seen in a microscope.
What happens when ethanol is mixed with vinegar?
Probably nothing since vinegar is a dilute concentration of acetic acid...However if you had pure acetic acid & ethanol the two would react to form an ester called ethyl acetate at room temperature: CH3CH2OH (ethanol) + CH3COOH (acetic acid) <==> CH3COOCH2CH3 (ethyl acetate) + H2O However since it is an equilibrium reaction you'd have a mixture of the products & reactants & would need to separate the mixture. Under the presence of an acid catalyst (such as sulfuric acid) & continuously removing the water you can increase the yield of ethyl acetate.
How can the yield of ammonia be increased?
in the haber process its yield is increased by increasing presure
What does the conventional symbol LY on a topographic map mean?
Low Yield Low Yield
When an acid reacts with a base what compounds are formed?
salt & water
Can meloxicam yield a positive result on ANA testing?
can taking meloxicam yield a positive result on antinuclear antibody (ANA) test
All amino acid having an aromatic ring give a positive xanthoproteic test under identical condition?
yes! but actually for phenylalanine it just weakly positive or negative because the aromatic ring is not activated so it is not give the positive result...phenylalanine need certain condition to give positive result
What color develops when ninhydrin react with amino acids?
These are the amino acids that will yield positive result to the ninhydrin test: Non-polar amino acids: Glycine, Alanine, Valine, Leucine, Isoleucine, Phenylalanine, Methionine, Tryptophan Polar Neutral Amino acids: Serine, Cysteine, Threonine, Asparagine, Glutamine, Tyrosine Polar Acidic Amino Acids: Aspartic acid and Glutamic acid Polar Basic Amino Acids: Histidine, Lysine, Arginine
What does hydrolysis of a simple protein yield?
Amino acids.
What are the biuret test results for egg albumin?
Yes. The Biuret test is a test for the presence of peptide bonds. Since albumin is a class of protein, and proteins are composed of many amino acids joined together by peptide bonds, the test will yield a positive result.
Why do negative and negative become positive?
A negative and a negative can yield a positive result in some cases.SubtractionSubtracting a negative number is the same as adding its negative value, which is positive. So if the subtracted number is larger in value, the answer will be positive.(-4) - (-3) = (-4) + 3 = (-1) * the subtracted number was not large enough(-4) - (-8) = (-4) + 8 = 4 *the subtracted number was large enough to yield a positiveMultiplication and DivisionWhenever a negative number and a negative number are multiplied or divided, the negative signs "cancel out" and the result is positive.(-2) x (-3) = 6(-6) / (-3) = 2A multiplication or division involving one negative and one positive will, however, have a negative result.
What combination of signed numbers always leads to a positive number?
If I understand the question correctly, the sum of two positive numbers will *always* yield a positive number. The product of two positive or two negative numbers will always yield a positive number. The division of two positive or two negative numbers will always yield a positive number. There are more examples along this line. I am not sure if this is what you wanted to know.
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.
Why proline amino acid gives yellow colour in reaction with ninhydrin?
Yes. Within "The Chemical Reactions of Amino Acids / Reactions of Amino Groups" there are several examples - one of which is the ninhydrin reaction. A very widely applied reaction of the alpha amino group [that is the N in the peptide bond -CCN-CCN-], it is used to estimate the quantity of amino acids [in a sample] in very small amounts. All amino acids and polypeptides with a free alpha group react with ninhydrin and yield [or produce] an intensely purple colored product - except for Proline and Hydroxyproline {both in which the alpha amino group is termed to be 'substituted' - something to do with carbon rings} which "yield derivatives with a characteristic yellow color." See also 'Schiff's bases'.
What 5 odd numbers added together equal 14?
19
What are the differences between simple protein and conjugated protein?
Simple proteins hydrolyse to yield only amino acids eg: the albumens , globulins. Conjugated proteins will yield phosphate groups or other residues such as nucleic acids in addiction to amino acids eg: glycoproteins, lipoproteins.
How do you use positive number in a sentence?
A negative number multiplied by a negative number will yield a positive number.
