During plant cell cytokinesis, which structure forms to separate the two new daughter cells?

During plant cell cytokinesis, which structure forms to separate the two new daughter cells?

• A. Cell wall
• B. Cell plate
• C. Spindle fiber
• D. Nucleolus

Answer: (B)

During plant cell cytokinesis, vesicles produced by the Golgi apparatus coalesce at the center of the cell to form a cell plate. This cell plate grows outward and fuses with the existing membranes, ultimately developing into the separating cell wall that divides the two daughter cells. This mechanism is specific to plant cells and explains why a distinct partition forms rather than a contractile ring like in animal cells. The spindle fibers guide chromosome separation during mitosis, and the nucleolus is involved in ribosome production, not in creating the separating structure.

During plant cell cytokinesis, vesicles produced by the Golgi apparatus coalesce at the center of the cell to form a cell plate. This cell plate grows outward and fuses with the existing membranes, ultimately developing into the separating cell wall that divides the two daughter cells. This mechanism is specific to plant cells and explains why a distinct partition forms rather than a contractile ring like in animal cells. The spindle fibers guide chromosome separation during mitosis, and the nucleolus is involved in ribosome production, not in creating the separating structure.