Cell Signalling and Transduction
If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation?

All of these
Nitric oxide would no longer be produced
It would be more difficult to increase blood flow and reduce blood pressure
Smooth muscle cells could not be made to relax

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Cell Signalling and Transduction
A signal cascade induced by adrenaline or thyroxine

results in the activation of a sequence of enzymes needed for the cell effect
must begin with receipt of the signal molecule by a surface receptor
All of these
involves the activation of a G protein

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