CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The vesicles is form by actin filaments in cytoplasm
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The vesicles assemble at equator between the two nuclei to form a cell plate
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The cell plate grows until fuse with the plasma membrane to form cleavage furrow
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The cleavage furrow helps divides the cell into two daughter cells.
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Detailed explanation-1: -Although the stages of mitosis are similar for most eukaryotes, the process of cytokinesis is quite different for eukaryotes that have cell walls, such as plant cells. In cells such as animal cells that lack cell walls, cytokinesis begins following the onset of anaphase.
Detailed explanation-2: -How is plant mitosis different from animal mitosis? The most important difference between plant and animal mitosis is the cytokinesis. In plants, a cell plate is formed, whereas in animals a cleavage is formed.
Detailed explanation-3: -Though all stages are same in both animal and plant mitosis, the formation of the mitotic spindle is different. Animal cells contain centrioles, which nucleate the microtubules of the spindle. Since plant cells lack centrioles, the microtubules are nucleated near the nuclear envelope.
Detailed explanation-4: -Solution : Ans:-i) Plant cells cannot undergo cym tokinesis like animal cells because they have a rigid or inextensible cell wall.-ii) Cytokinesis starts with the formation of a cell plate in the centre of the cell during telophase.
Detailed explanation-5: -Animal cytokinesis was described as a process based on an actomyosin-based contractile ring, assembling, and acting at the cell periphery. In contrast, cytokinesis of plant cells was viewed as the centrifugal generation of a new cell wall by fusion of Golgi apparatus-derived vesicles.