Morphine and heroin duplicate the action of

Full Question:

Morphine and heroin duplicate the action of .

A) Endorphins

B) Alcohol

C) Cigarettes  

D) LSD

The correct answer A) is Morphine and heroine duplicate the action of endorphins.

Explanation:

β-Endorphin is a naturally occurring opioid neuropeptide and peptide hormone that is produced in certain neurons within the central nervous system and peripheral nervous system.

Neuropeptides are small protein-like molecules used by neurons to communicate with each other. They are neuronal signalling molecules that influence the activity of the brain and the body in specific ways.

A peptide is a short chain of amino acids.

β-Endorphin is one of three endorphins that are produced in humans, the others of which include α-endorphin and γ-endorphin.

Research shows that it serves as a primary endogenous ligand for the μ-opioid receptor, the same receptor to which the chemicals extracted from opium, such as morphine, derive their analgesic properties.

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d, i believe because of it's activity level