Steroid hormones bind to receptors inside the cell and alter their conformation. The hormone-receptor complex is then transported into the nucleus, where it can directly affect gene expression. To get from the location where the receptor binds the hormone to its site of action, the hormone-receptor complex must ________.
A) undergo another conformational change
B) become water soluble by binding to a carrier molecule
C) be transported through the nuclear pore complex
D) enter the smooth endoplasmic reticulum

Question

Quizplus · Accepted Answer

The hormone-receptor complex must be transported through the nuclear pore complex in order to get to the nucleus where it can affect gene expression. It does not need to undergo another conformational change or enter the smooth endoplasmic reticulum, and does not typically bind to a carrier molecule to become water soluble.

Steroid Hormones Bind to Receptors Inside the Cell and Alter