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Define Molisch's Test or alpha naphthol reaction?
The Molisch test is a common test for the existence of carbohydrates.
Principle
The reaction is due to the formation of furfural or furfural derivatives. Furfural and furfural derivatives are derived from the dehydration of sugars. The dehydration is caused by the action of concentrated sulphuric acid on sugars. Disaccharides, oligosaccharides and polysaccharides are hydrolyzed to yield their repeating monomers by the acid. The alpha-naphthol reacts along with the cyclic aldehydes to make purple coloured condensation products.
Two chromosomes in a cell have identical length and centromere position yet are not homologous, what is different about them.
what is the meaning of heterotropic mode of nutrition. with examples.
CHROMOLIPID Formed by lipid & pigment, eg. carotene, xanthophylls. Lycopene present in tomato & red chilli. Carrot is rich in b-carotene, converted into vitamin A.
Q. Signs of constrictive pericarditis? 1) Jugular venous pressure (JVP) is elevated in all patients of CP which reflects the elevated diastolic pressure of the right atrium.
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