Communicating Junctions Are Protein Channels That

Multiple Choice

Communicating junctions are protein channels that

A) allow ions to cross freely between cells.
B) actively transport ions from one cell to the next.
C) prevent free-movement of molecules in the space between adjacent cells.
D) provide pathways of high electrical resistance.
E) use integrins to span the plasma membrane and link to a similar unit in an adjacent cell.