Cell Signaling

A(n) ________ to the environment can be critical for survival.

________ cleaves plasma membrane phospholipid PIP₂ producing diacylglycerol (DAG) and inositol triphosphate (IP3)

________ activates phospholipase c.

________ signaling: Molecules bound to the surface of cells serve as signals to.

________ exerts a variety of effects on cell behavior.

________ are comprised of extracellular and intracellular domains.

________: Cell junctions allow signaling molecules to pass from one cell.

________: activated receptor stimulates a sequence of changes.

________: relay signals inside cells.

First ________: signals binding to the cell surface.

________ binds to adenylyl cyclase enzyme**,** stimulating synthesis of cAMP.

Glucose signals yeast cells to increase glucose transporters and enzymes allowing efficient uptake and use of glucose

Cell junctions allow signaling molecules to pass from one cell

Molecules bound to the surface of cells serve as signals to

Cells secrete signaling molecules that bind to their own cell surface or similar neighboring cells

signal does not affect originating cell, but does influence nearby cells

signals called hormones travel long distances and are usually longer lasting in effect

signaling molecule binds to receptor

activated receptor stimulates a sequence of changes

signals binding to the cell surface

relay signals inside cells

binding of signal to one receptor can cause the synthesis of many cAMP molecules that activate PKA, and each PKA can phosphorylate many proteins

in one experiment a substantial amount of cAMP was made within 20 seconds after addition of signal