Biology 10th Edition by Eldra Solomon,Charles Martin,Diana Martin,Linda Berg

تمرين 7

When growth hormone binds to an enzyme-linked receptor
A) G proteins form a cascade of molecules and are phosphorylated
B) the enzyme portion of the receptor is dephosphorylated
C) the receptor is activated and phorphorylates signaling proteins in the cell
D) an ion channel is opened
E) an immediate signal is sent into the nucleus and specific genes are activated or inhibited