Cocaine interferes with dopamine transport by blocking its reuptake, increasing dopamine levels in synapses (causing euphoria).
Cocaine blocks dopamine reuptake in the brain’s reward pathway, causing euphoria and addiction.
Dopamine is a neurotransmitter, a chemical messenger in the brain that plays a key role in many important functions, including mood regulation, motivation, pleasure, reward, and motor control. It is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area.
Other neurotransmitters:
Correct Answer: (D) Dopamine
The circuit shown in the figure contains two ideal diodes \( D_1 \) and \( D_2 \). If a cell of emf 3V and negligible internal resistance is connected as shown, then the current through \( 70 \, \Omega \) resistance (in amperes) is: 