1.4(a) - Co-ordination Flashcards
1
Q
How are extracellular signalling molecules used?
A
Used by multicellular organisms to signal between cells
2
Q
What are receptor molecules?
A
Proteins with a binding site for a specific signal molecule
3
Q
What happens when a signal molecule binds to a receptor?
A
The conformation changes which initiates a cell response
