Question

1. determine the correct pairing of molecules based on their origin and function.

a molecule b : cannabinoid, source : atropa belladonna, use : produces hallucinations
b molecule b : heroin, source : cannabis sativa, use : depressant & slows down body functions.
c molecule a : fentanyl, source : erythroxylum coca, use : accelerates the transport of dopamine.
d molecule a : morphine, source : papaver somniferum, use : sedative and pain killer

Explanation:

• Option a: Cannabinoid is from Cannabis sativa, not Atropa belladonna. Atropa belladonna contains atropine.
• Option b: Heroin is synthesized from morphine (from Papaver somniferum), not from Cannabis sativa. Cannabis sativa has cannabinoids.
• Option c: Fentanyl is a synthetic opioid. Erythroxylum coca is the source of cocaine which affects dopamine transport (blocks re - uptake, not accelerates in a normal physiological sense).
• Option d: Morphine is indeed obtained from Papaver somniferum and is used as a sedative and pain - killer.

Answer:

d. Molecule A : Morphine, Source : Papaver somniferum, Use : Sedative and pain killer