How is a signal transduction pathway initiated? Biology Movement In and Out of Cells Cell Communication 1 Answer Preethem S. Jun 21, 2015 Binding of a ligand to its receptor Answer link Related questions Why are plasmodesmata important? How can cell communication be disrupted? How are plasmodesmata related to the symplast? How are gap junctions formed? What is a signal transduction pathway? How do membrane receptors work? What are some examples of membrane receptors? What is cyclic amp? What are the functions and properties of a ligand protein receptor? What amplifies the communication from a signal molecule? See all questions in Cell Communication Impact of this question 3094 views around the world You can reuse this answer Creative Commons License