The bus departs this location and heads for the plasma

Last updated: 4/3/2023

The bus departs this location and heads for the plasma membrane As it leaves the cell Ms Frizzle points out some activity there A molecule outside the cell just bound to a membrane protein and now that protein has activated another membrane protein that looks identical to the first one I wonder if this is a cell signaling pathway Does this sound more like a G protein coupled receptor GPCR or a receptor tyrosine kinase RTK signaling pathway Explain briefly