A ligand will cause a cell to respond if it connects with the right ________________.

active site
receptor
enzyme
phospholipid

Question

A ligand will cause a cell to respond if it connects with the right ________________.
 	
	active site
	receptor
	enzyme
	phospholipid

alphadxg · Answer

Well, honestly to me, there is only one answer that truly stands out. 

Active site - is on the enzyme when a substrate binds
receptor - anything can bind to this
enzyme - a substrate can bind to this, and for the most part that is it
phospholipid - this is a protein usually most of the time nothing binds to this.

which one do you think works the best out of these answers?