Find out a qualitative test for proteins,fats | vedclass

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(N/A) Test for proteinBiuret's test - If Biuret's reagent is added to protein,then the colour of the reagent changes from light blue to purple.$(b)$ T

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(N/A) Test for proteinBiuret's test - If Biuret's reagent is added to protein,then the colour of the reagent changes from light blue to purple.$(b)$ Test for fats and oilsGrease or solubility test.$(c)$ Test for amino acidNinhydrin test - If Ninhydrin reagent is added to the solution,then the colourless solution changes to pink,blue,or purple,depending on the amino acid.Item and TestProcedure and Result$(1)$ Fruit juice (Biuret/Grease/Ninhydrin)Biuret: Purple color (Protein present); Grease: No spot (Fats absent); Ninhydrin: Color change (Amino acids present).$(2)$ Saliva (Biuret/Grease/Ninhydrin)Biuret: Purple color (Protein present); Grease: No spot (Fats absent); Ninhydrin: Color change (Amino acids present).$(3)$ Sweat (Biuret/Solubility/Ninhydrin)Biuret: No change (Protein absent); Solubility: Oily appearance (Fats present); Ninhydrin: No change (Amino acids absent).$(4)$ Urine (Biuret/Solubility/Ninhydrin)Biuret: Purple color (Protein present); Solubility: Oily appearance (Fats present); Ninhydrin: Color change (Amino acids present).

$(1)$ Carbohydrate	$(a)$ Ester bond
$(2)$ Lipid	$(b)$ Glycosidic bond
$(3)$ Protein	$(c)$ Phosphodiester bond
$(4)$ Nucleic acid	$(d)$ Peptide bond

Find out a qualitative test for proteins,fats and oils,amino acids and test any fruit juice,saliva,sweat and urine for them.

Similar Questions

$A$: Living organisms obtain various molecules and elements from their environment.
$R$: Living organisms synthesize components essential for their body.

Select the correct option for the following matches:
$(1)$ Carbohydrate $(a)$ Ester bond
$(2)$ Lipid $(b)$ Glycosidic bond
$(3)$ Protein $(c)$ Phosphodiester bond
$(4)$ Nucleic acid $(d)$ Peptide bond

In the liver,glucose is converted into glycogen,which is stored in the ....... .

The amount of usable energy,which is available for doing work,when the temperature and pressure are uniform throughout the system is called

When does the body synthesize fat?

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Item and Test	Procedure and Result
$(1)$ Fruit juice (Biuret/Grease/Ninhydrin)	Biuret: Purple color (Protein present); Grease: No spot (Fats absent); Ninhydrin: Color change (Amino acids present).
$(2)$ Saliva (Biuret/Grease/Ninhydrin)	Biuret: Purple color (Protein present); Grease: No spot (Fats absent); Ninhydrin: Color change (Amino acids present).
$(3)$ Sweat (Biuret/Solubility/Ninhydrin)	Biuret: No change (Protein absent); Solubility: Oily appearance (Fats present); Ninhydrin: No change (Amino acids absent).
$(4)$ Urine (Biuret/Solubility/Ninhydrin)	Biuret: Purple color (Protein present); Solubility: Oily appearance (Fats present); Ninhydrin: Color change (Amino acids present).