You are studying a plant and inject fluorescein, a fluorescent dye, into a single cell on the surface of the plant. After a brief period of time, the dye spreads to cells neighboring the injected cell. What do you conclude?
A)The cells are connected by the cell wall.
B)The cells are connected by tight junctions.
C)The cells are connected by gap junctions.
D)The cells are connected by plasmodesmata.
E)The cells are connected by zonulae adherens.

Question

Quizplus · Accepted Answer

Plasmodesmata are channels that connect adjacent plant cells through their cell walls. This allows for movement of materials such as fluorescein between cells. Tight junctions and gap junctions are found in animal cells, not in plant cells. Zonulae adherens are a type of anchoring junction found in animal cells, not in plant cells.

You Are Studying a Plant and Inject Fluorescein, a Fluorescent