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

Explanation

Qualitative tests for proteins, amino acids and fats.
Biuret test - For proteins identifies the presence of proteins by producing violet colour of the solution.
Libermann - B test for cholesterol - This is mixture of acidic anhydride and sulphuric acid. This gives green colour when mixed with cholesterol.
Grease test for oils - certain oils gives tranfucent stain on clothes. This test can be used to show presence of fats in vegetables oils.