NEET AIPMT SOLVED PAPER MAINS 2012

  • question_answer
    Identify the molecules [a] and [b] shown below and select the right option giving their source and use
     I.                  II.
     

    A)
    Molecule Source Use
    I. Cocaine Erythroxylum coca Accelerates the transport of dopamine

    B)
    Molecule Source Use
    II. Heroin Cannabis sativa Depressant and slows down body functions.

    C)
    Molecule Source Use
    II. Cannabinoid Atropa belladonna Produces hallucinations
     

    D)
    Molecule Source Use
    I. morphine Papaver sommiferum Sedative and pain killer

    Correct Answer: A

    Solution :

    Cocaine \[({{C}_{17}},{{H}_{21}},N{{O}_{4}})\] is natural alkaloid obtained from leaves of coca. (Erythroxylon coca). It is powerful CNS stimulant which induce a sense of well being, pleasure and delays fatigue. Morphine \[({{C}_{17}},{{H}_{19}}{{O}_{3}}N)\] is extracted from Papaver somniferum and relieve pain. Heroin \[[{{C}_{17}}{{H}_{17}}{{(O{{C}_{2}}{{H}_{3}}O)}_{2}}ON]\] is semi-synthetic opiate. It is about three times more potent than morphine.


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