Cocaine and Hallucinogenic Drugs — NEET Biology
✅ Asked in NEET 2026Coca alkaloid or cocaine is obtained from coca plant Erythroxylum coca, native to South America. It interferes with the transport of the neuro-transmitter dopamine. Cocaine, commonly called coke or crack is usually snorted. It has a potent stimulating action on central nervous system, producing a sense of euphoria and increased energy. Excessive dosage of cocaine causes hallucinations. Other well-known plants with hallucinogenic properties are Atropa belladona and Datura. These days cannabinoids are also being abused by some sportspersons.
NTA tests whether students know that cocaine (coca alkaloid) comes from Erythroxylum coca plant and how it affects the nervous system by interfering with dopamine transport. Students often confuse cocaine with other hallucinogenic plants like Atropa belladona or Datura, or mix up its mechanism—cocaine is primarily a stimulant producing euphoria, not a hallucinogen (though excessive doses cause hallucinations). Remember: Coca plant → Cocaine → Dopamine inhibition → CNS stimulation. Also note the mention of cannabinoids in sports abuse. This topic directly tests drug source identification and neurochemical mechanisms, making it a likely NEET repeat concept.
This paragraph was tested 2 times in NEET.
Match List I (Drug) with List II (Effect) — A. Nicotine, B. Morphine, C. Heroin, D. Cocaine.
Match List-I with List-II: (NEET 2024) List-I: A. Cocaine B. Heroin C. Morphine D. Marijuana List-II: I. Effective sedative and painkiller in surgery II. Cannabis sativa III. Erythroxylum coca IV. Papaver somniferum Choose the correct answer from the options given below:
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.