Mistake Master
Mistake Master · AP Biology · Unit 4 · Step-Through Animation
The Signal Shouts. Only the Receptor Listens.
You'll learnwhy a signal reaches many cells but only ones with the matching receptor respond.
A cell that needs to say something to another cell has to answer two questions that never talk to each other: how far away is the listener, and does the listener carry the matching receptor? Insulin reaches essentially every cell you own, and almost every one of them ignores it. Twelve short steps; press Next for each one.
signal · distance · receptor
Before you start
What you're looking at
One source cell on the left, three target cells to its right, spaced by distance; each target shows a filled or hollow receptor.
The question
Did the signal reach this cell, and does this cell have the receptor to hear it?
Step 1 / 12