The formation of a cell plate is beginning across the middle of a cell and nuclei are re-forming at opposite ends of the cell. What kind of cell is this?
Correct answer: D. A plant cell undergoing cytokinesis
- A. An animal cell in telophase
- B. An animal cell undergoing cytokinesis
- C. A plant cell in metaphase
- D. A plant cell undergoing cytokinesis
Explanation
The formation of a cell plate across the middle of a cell and the re-formation of nuclei at opposite ends of the cell indicate that this is a plant cell undergoing cytokinesis after mitosis. In plant cells, cytokinesis involves the formation of a cell plate, which is made of vesicles containing cell wall material. The cell plate gradually expands outward from the center of the cell towards the cell walls, eventually dividing the cytoplasm into two daughter cells.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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