Most signal molecules
A) easily diffuse through the membrane and bind to a receptor in the cytoplasm.
B) bind to membrane receptors and transmit information across a membrane without traversing the membrane.
C) carry out functions in the nucleus after binding to a receptor in the cell membrane.
D) easily diffuse through the membrane and bind to a receptor in the nucleus.
E) None of the answers is correct.

Question

Quizplus · Accepted Answer

Signal molecules typically bind to membrane receptors and transmit information into the cell without themselves traversing the membrane. This process allows the cell to respond to external signals without the signal molecules needing to enter the cell.

Most Signal Molecules