$(1$ pt$)$While signal transduction pathways can differ in their details, there are some common elememt.

Select the five statements that accurately describe signal transduction pathways.

A A ligand, such as a hormone, binds to a specific cell surface receptor on a target cell.

A receptor changes conformation upon binding a signal molecule.

$$ Signal transduction cascades, often involving protein kinases, amplify a signal intracellularly.

Signal transduction cascades directly transmit a single stimulus to a single target.

A second messenger may carry a signal from the cell membrane to an organelle.

A second messenger carries a signal from a tissue or organ to a target cell.

Phosphatases remove phosphoryl groups from polypeptides, regulating a cell's response.