Co Ordination Flashcards
How to multicellular organisms signal between cells
Using extra cellular signalling molecules
What are examples of extra cellular signalling molecules
Steroid hormones, peptide hormones and neurotransmitters
What are receptor molecules of target cells
Proteins with a binding site specific to a signal molecule
What does binding do
Changes the conformation of the receptor which initiates a response within the cell
What do different cell types do
Produce specific signals that can only be detected and responded to by cells with the specific receptor
Why do signalling molecules have different effects on different target cell types
Due to differences In the intracellular signalling molecules and pathways involved
In a multicellular organism different cell types show what
A tissue specific response to the same signal
