How far
Reception
Transduction
Practice
how the signal travels
direct — into the cell it is touching
autocrine — back to the cell that made it
paracrine — out to near neighbours
endocrine — into the blood
receptors on the cells
only some cells carry the receptor
every cell carries the receptor
no cell carries the receptor
distance to the farthest cell
120 µm
secretion rate
8
name the parts
the signal molecule
a peptide hormone — insulin
a neurotransmitter — acetylcholine
a steroid hormone — oestradiol
a gas — nitric oxide
lipid solubility
8 of 100
amplifying stages
4
molecules made per stage
30
block a step
nothing is blocked
block the G protein
block adenylyl cyclase
block protein kinase A
block the enzyme
who hears the signal, and who does not
1
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Answer
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Hint
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How to think about it
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