Dye injected into a plant cell might be able to enter an adjacent cell through __________.

• A. a tight junction
• B. a microtubule
• C. a cell wall
• D. a gap junction
• E. plasmodesmata

Answer: (E)

Verified step by step guidance

1. Understand the structure and function of plasmodesmata: Plasmodesmata are microscopic channels that traverse the cell walls of plant cells, allowing for transport and communication between adjacent cells.
2. Recognize the role of plasmodesmata in intercellular communication: These channels facilitate the movement of ions, molecules, and even some larger substances like proteins and RNA between plant cells.
3. Differentiate plasmodesmata from other cellular structures: Unlike tight junctions, microtubules, and gap junctions, plasmodesmata are specific to plant cells and are involved in direct cytoplasmic connections.
4. Consider the context of dye movement: When dye is injected into a plant cell, it can move to adjacent cells through plasmodesmata, as these structures allow for the passage of substances between cells.
5. Conclude why plasmodesmata is the correct answer: Given the function and location of plasmodesmata in plant cells, they are the most likely structure through which dye can move from one cell to another.