Questions: Dye injected into a plant cell might be able to enter an adjacent cell through a gap junction a tight junction a cell wall plasmodesmata a microtubule

Dye injected into a plant cell might be able to enter an adjacent cell through a gap junction a tight junction a cell wall plasmodesmata a microtubule
Transcript text: Dye injected into a plant cell might be able to enter an adjacent cell through $\qquad$ a gap junction a tight junction a cell wall plasmodesmata a microtubule
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Solution

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The answer is the fourth one: plasmodesmata.

Explanation for each option:

  1. A gap junction: Gap junctions are channels that allow for the direct communication between animal cells, not plant cells. Therefore, this option is incorrect.

  2. A tight junction: Tight junctions are structures that create a watertight seal between animal cells, preventing the passage of materials. They are not found in plant cells. Therefore, this option is incorrect.

  3. A cell wall: The cell wall is a rigid structure that surrounds plant cells, providing support and protection. While it is a key feature of plant cells, it does not facilitate the direct transfer of substances between adjacent cells. Therefore, this option is incorrect.

  4. Plasmodesmata: Plasmodesmata are channels that traverse the cell walls of plant cells, allowing for the transport of materials and communication between adjacent cells. This is the correct answer.

  5. A microtubule: Microtubules are components of the cytoskeleton within cells and are involved in various cellular processes, including maintaining cell shape and facilitating intracellular transport. They do not facilitate direct communication between adjacent cells. Therefore, this option is incorrect.

Summary: The correct answer is plasmodesmata, as they are the structures that allow for the passage of substances between adjacent plant cells.

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