Write the source and the effect on the human body of the following drugs:
(i) Morphine
(ii) Cocaine
(iii) Marijuana
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Answer:
Morphine from poppy plant.
It binds to specific opioid receptors present in central nervous system and gastrointestinal tract.
Cocaine from coca plant.
It interferes with the transmit of the dopamine, neurotransmitter.
Marijuana from Cannabis sativa.
It affects the cardiovascular system of the body.
Explanation:
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1.Morphine–Poppy plant/ Papaver somniferum, depressant.
2 .Cocine–Erythroxylum coca, stimulate CNS/ causes euphoria/hallucination.
3.Marjiuana–Cannabis sativa, effects cardiovascular system of the system.
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