Biosignaling

Question 1

Ion channels?

Answer 1

can be used for regulating ion flow into or out of a cell

• ungated
• voltage gated
• ligand gated

Question 2

Enzyme linked receptors?

Answer 2

participate in cell signaling through extracellular ligand binding and initiation of second messenger cascades

Question 3

G protein coupled receptors?

Answer 3

have a membrane bound protein associated with a trimeric G protein, they also initiate second messenger systems