Textbook Question
Compare cytokinesis in plant and animal cells.
In what ways are the two processes similar?
In what ways are they different?
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11. Cell Division
Cytokinesis
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Which structure is formed during cytokinesis in a plant cell?
A
Cleavage furrow
B
Centrosome
C
Spindle fibers
D
Cell plate
Verified step by step guidance1
Understand the process of cytokinesis: Cytokinesis is the final step of cell division where the cytoplasm of a parent cell is divided into two daughter cells. In plant cells, this involves the formation of a new structure to separate the cells.
Recognize the difference between plant and animal cell cytokinesis: In animal cells, cytokinesis occurs through the formation of a cleavage furrow, which pinches the cell membrane to separate the cells. However, plant cells have a rigid cell wall, so they use a different mechanism.
Identify the structure formed in plant cells: During cytokinesis in plant cells, a cell plate is formed. This structure develops at the site where the new cell wall will be constructed between the two daughter cells.
Understand the role of the cell plate: The cell plate is formed from vesicles derived from the Golgi apparatus. These vesicles coalesce at the center of the cell, eventually fusing to form a new cell wall that separates the two daughter cells.
Recognize the importance of the cell plate: The formation of the cell plate is crucial for plant cell division as it ensures that each daughter cell is enclosed within its own cell wall, maintaining the structural integrity necessary for plant cells.
