Gap Junctions and Plasmodesmata Differ in That

Multiple Choice

Gap junctions and plasmodesmata differ in that

A) gap junctions are connected by protein tubules called connexons, whereas plasmodesmata are connected by extensions of the plant's cell walls.
B) gap junctions allow much larger molecules to pass through them.
C) gap junctions allow no real physical connection between cells; rather they are the spaces between cells.
D) one is found in animals and the other is found in plants.
E) gap junctions are connected by desmotubules, and plasmodesmata are connected by connexons.