Answer:
1. Message; chemical; transduced; actions.
2. Protein modification; phosphorylation cascade; energy.
3. Signal Transduction Pathways (STP).
Explanation:
Transduction can be defined as a process which typically involves the change of a signal message contained in the outside of a cell to a message within or inside the cell.
1. Signal Transduction Pathways start with a message in the form of a chemical message that is transduced into actions within the cell.
2. The two types of Signal Transduction Pathways (STP):
a. Protein modification.
b. Phosphorylation cascade: a phosphate that has energy is passed from one chemical to another until it eventually has an action.
3. An example with G-Protein in the Liver: is a signal transduction pathway (STP).
a. Messenger: docks with the receptor, specifically the G protein receptor.