Opioids and Heroin Binding — NEET Biology
✅ Asked in NEET 2023Opioids are the drugs, which bind to specific opioid receptors present in our central nervous system and gastrointestinal tract. Heroin, commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine, which is extracted from the latex of
NTA tests understanding that opioids like heroin bind to specific receptors in the CNS and GI tract, acting as depressants that slow body functions. Students often confuse heroin's chemical structure (diacetylmorphine) with its mechanism or forget that it's derived from morphine through acetylation. The key trap is mixing up depressant effects with addiction potential—both matter, but NTA focuses on receptor binding and CNS depression. Remember: heroin is obtained by acetylating morphine from poppy latex, and this binding to specific receptors is what causes its depressant effects on the body.
This paragraph was tested 4 times in NEET.
Match List-I with List-II: (NEET 2023) List-I: A. Smack B. Charas C. Cocaine D. LSD List-II: I. Cannabis sativa II. Diacetylmorphine III. Claviceps purpurea IV. Erythroxylum coca Choose the correct answer from the options given below:
Diacetyl morphine is also called as: (NEET 2023)
The drug called ‘Heroin’ is synthesized by (NEET 2019)
Which part of poppy plant is used to obtain the drug “smack”? (NEET 2018)
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.
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