Steroid hormones

A) bind to membrane receptors.
B) diffuse easily through the plasma membrane.
C) act by activating cAMP.
D) are inactivated by phosphodiesterase.
E) are water soluble.

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.