Ptyalin, riboflavin, morphine, testosterone, thiamine, niacin , sucrase,


Ptyalin, riboflavin, morphine, testosterone, thiamine, niacin , sucrase, nicotine,
amylase, retinol, quinine, calciferol, adrenaline , trypsin
Classify them as enzymes , hormones,
alkaloids and vitamins.​


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