According to the Work of Bruce Alexander and Colleagues Which

question 71

Multiple Choice

According to the work of Bruce Alexander and colleagues which variables were most critical in suppressing a rat's motivation to consume psychoactive drugs?

• A) Social interactions
• B) Physical exercise
• C) A more stimulating environment
• D) The experimental design did not allow for the isolation of a single variable

---

Definitions:

Steroid Hormones

Lipid-soluble molecules derived from cholesterol that regulate a variety of physiological functions including metabolism, inflammation, and sexual function.

Plasma Membrane

The lipid bilayer that surrounds a cell, controlling the passage of substances in and out of the cell.

Phosphodiesterase

Enzyme that splits phosphodiester bonds—that is, that breaks down cyclic AMP to AMP.

Phosphodiesterase

An enzyme that plays a role in cell signal transduction by breaking down phosphodiester bonds.