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

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

ANSWER DOWNLOAD EXAMIANS APP

Cell Signalling and Transduction
In the signal transduction mechanism known as protein phosphorylation

All of these
phosphorylated proteins act with enzymes to trigger the signal cascade
receptor kinases play a key role in triggering the signal cascade
the signaling molecule binds to a surface receptor

ANSWER DOWNLOAD EXAMIANS APP