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what is alkaloids?give exact picture of alkanoid

 An alkaloid is a type of plant-derived organic compound. Alkaloids are generally composed of oxygen, hydrogen, carbon, and nitrogen. Some alkaloids are considered toxic, but others are often used medicinally. Alkaloids one might encounter in everyday life include caffeine, the drugs atropine and quinine, and the deadly nightshade plant. Alkaloids are relatively rare in plants. They have what's considered to be a complex chemical structure, and they always contain a nitrogen molecule. An alkaloid may also contain molecules of oxygen, carbon, and hydrogen.




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