________ Hormones Bind to a Receptor on the ________, Which

Question

________ hormones bind to a receptor on the ________, which releases an enzyme that converts ATP into cAMP.
A)Steroid and thyroid; nuclear membrane
B)Steroid and thyroid; plasma membrane
C)Nonsteroid; plasma membrane
D)Nonsteroid; nuclear membrane

Accepted Answer

Nonsteroid hormones bind to a receptor on the plasma membrane, which then activates a second messenger system, such as cAMP. Steroid and thyroid hormones are lipid-soluble and can diffuse through the plasma membrane to bind to receptors on the nuclear membrane to directly affect gene expression.