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Question

Identify the molecules (i) and (ii) given below and select the right option giving their source and use.

A
(ii) Heroin- Cannabis sativa -Depressant and slows down body functions
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B
(i) Morphine- Papaver somniferum - Sedative and painkiller
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C
(ii) Cannabinoid - Atropa belladonna -causes hallucinations
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D
(i) Cocaine - Erythroxylum coca -Accelerates the transport of dopamine
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Solution

The correct option is B (i) Morphine- Papaver somniferum - Sedative and painkiller
  • Molecule (i) represents the structure of morphine. Morphine is the alkaloid extracted from the latex or dried sap of unripe pods of the poppy plant, Papaver somniferum. Morphine is a potent opiate which is used as a painkiller(analgesic) for terminally ill patients and for patients who have undergone surgery. It is also a depressant or a sedative and slows down body functions. Morphine acts on the opioid receptors of the central nervous system and gastrointestinal tract.
  • Molecule (ii) represents the cannabinoid structure. Cannabinoid is derived from the leaves, inflorescence, flower tops, and resin of Cannabis sativa. They act on the cannabinoid receptors of the central nervous system and show their effects on the cardiovascular system. They are hallucinogenic in its property.

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