How does cytokinesis occur in both plant and animal cells? similarities & differences?
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In an animal cell, cytokinesis is accomplished by a ring of protein that tightens and eventually splits the cell into two.  In plants, cytokinesis is accomplished by small packets of membrane (vesicles) that fuse in the midline and deposit new material to make a new cell plate (cell wall).
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asymetric cytokinesis in oocytes.
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Centrioles are found only in animal cells. Also, in plants, cell division mainly takes place in special regions called meristems. These rapidly dividing areas will either elongate the tips of the plants' stems and roots or expand their width. In animals, cells divide everywhere. Cytoplasmic division is also different in plant cells. Plants divide the two daughter cells by building new cell walls rather than by cleaving (pinching in two) as animal cells do.
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dictionary.com\ncytokineses-The division of the cytoplasm of a cell following the division of the nucleus.\nmitosis-The entire process of cell division including division of the nucleus and the cytoplasm.\nmeiosis-Genetics. The process of cell division in sexually reproducing organisms that reduces the number of chromosomes in reproductive cells from diploid to haploid, leading to the production of gametes in animals and spores in plants.
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Plant cells are surrounded by a cell wall and have chloroplasts and large central vacuoles.  Animal cells have lysosomes and centrioles.
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Formation of a cell wall is a characteristic feature of all plant cells.Its formation in angiosperms does not differ much from its formation in other plants cells.\n After the nuclear division is over (end of karyokinesis)only then the division of cytoplasm(cytokinesis) begins.\n A number of microtubules are laid across the original cell, equidistant from the two recently formed daughter nuclei. They fuse to form middle lamella.This is the first dividing boundery between the two cells. Deposition of cellulose now begins on this middle lamella from either side and the wall formation is completed. Thus, a cell wall in plant cells is by and large made up of a complex carbohydrate called cellulose and in between the two layers of cellulose there is a layer called middle lamella.It is like butter sandwich. Just as the layer of butter holds the two slices of bread together or just as the layer of cement holds two adjecent bricks together and forms a wall; like wise the middle lamella holds the cells together and helps to form a tissue.
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Mitosis, also called karyokinesis, is division of the nucleus and its chromosomes.  It is followed by division of the cytoplasm known as cytokinesis.  Both mitosis and cytokinesis are parts of the life of a cell called the Cell Cycle.  Most of the life of a cell is spent in a non-dividing phase called Interphase.  Interphase includes G1 stage in which the newly divided cells grow in size, S stage in which the number of chromosomes is doubled and appear as chromatin, and G2 stage where the cell makes the enzymes & other cellular materials needed for mitosis.\n\nMitosis has 4 major stages --- Prophase, Metaphase, Anaphase, and Telophase. When a living organism needs new cells to repair damage, grow, or just maintain its condition, cells undergo mitosis.\n\nDuring Prophase, the DNA and proteins start to condense. The two centrioles move toward the opposite end of the cell in animals or microtubules are assembled in plants to form a spindle. The nuclear envelope and nucleolus also start to break up.\n\n\nProphase\n\nDuring Metaphase, the spindle apparatus attaches to sister chromatids of each chromosome. All the chromosomes are line up at the equator of the spindle. They are now in their most tightly condensed form.\n\n\nMetaphase\n\nDuring Anaphase, the spindle fibers attached to the two sister chromatids of each chromosome contract and separate chromosomes which move to opposite poles of the cell.\n\n\nAnaphase\nIn Telophase, as the 2 new cells pinch in half (animal cells) or a cell plate forms (plant cells), the chromosomes become less condensed again and reappear as chromatin. New membrane forms nuclear envelopes and the nucleolus is reformed.
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Cytokinesis is the process whereby the cytoplasm of a single cell is divided to spawn two daughter cells. It usually initiates during the late stages of mitosis, splitting a binucleate cell in two to ensure that chromosome number is maintained from one generation to the next. One notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. In plant cells, a dividing structure known as the cell plate forms across the centre of the cytoplasm and a new cell wall forms between the two daughter cells.\nThe big difference between animal and plant cell cytokinesis is that the animal cell develops a cleavage furrow that essentially pinches through the middle of the two new cells that will form two separate new cells.  In plant cells there is a new cell wall that begins to form between the two new forming cells called the cell plate.  This cell plate begins at the center of the two new cells and continues to grow outward towards the existing cell wall, finally dividing the one cell into two.
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cytokinesis is the process of splitting of cell in two by forming a cleavage on its cytoplasm while karyokinesis is forming of cleavage in the nucleus...?? oh!not sure..hehe..
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the cell dividing force lol. theres no such force. it's a spontaneous occurence
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During mitosis one of our cells (such as a skin cell for instance) divides to form two cells each of which is identical to the single parent cell, each new cell has the same ploidy, if the originating cell is diploid then the two progeny cells are diploid and identical to the parent cell. Mitosis is the kind of cell division that occurs when body cells replace each other during normal aging and wear and tear bodily growth, in cells such as those of the skin, digestive tract etc. Since this kind of cell division is non sexual it is also often described as vegetative division, and since it produces exact copies of the parent cell it is sometimes called clonal division. The function, then, of mitosis, is to ensure that each of the two new cells generated from one receives one of the sister chromatids from each chromosome in the original cell.
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, process of nuclear division in a living cell by which the number of chromosomes is reduced to half the original number. Meiosis occurs only in the process of gametogenesis, i.e., when the gametes, or sex cells (ovum and sperm), are being formed. Because fertilization consists of the fusion of two separate nuclei, one from each of the sex cells, meiosis is necessary to prevent the doubling of the chromosome number in each successive generation. An ordinary body cell is diploid; i.e., it contains two of each type of chromosome. The members of each pair are known as homologous chromosomes. An ovum or sperm is haploid; i.e., it contains only a single chromosome of each type and, therefore, half the number of chromosomes of the diploid cell. When the two haploid cells fuse, the diploid number is restored, and the plant or animal growing from the fertilized egg (zygote) has the usual diploid number of chromosomes in its cells. Just before meiosis each chromosome replicates to form two identical copies in the form of strands called chromatids joined together at a point called the centromere. In the first stage of meiosis, called the reduction division, the members of each pair of homologous chromosomes lie side by side and crossing over occurs. Each member of the pair then moves away from the other toward opposite ends of the dividing cell, and two nuclei, each with the haploid number of double-stringed chromosomes, are formed. Thus at the beginning of the second meiotic sequence, called the equational division, each cell nucleus contains one chromosome from each homologous pair and each chromosome is of two strands that are identical (except where crossing over has occurred). Then the chromosomes separate into their single strands which move toward opposite ends of the dividing nucleus. The result of meiotic division is four cells, each haploid, with one chromosome of each pair.
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It is pinched off by the growing cell wall-In animal cells, the membrane is very fluid, and thus in order to have another cell, the cell membrane must draw in to enclose two seperate spaces.  In a plant cell, the cell wall is stiff and relatively inflexible, and thus in order to seperate the cell into two spaces, the cell wall grows as a partition.
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Meiosis is a completely different process from mitosis.\n\nI should stop doing other people's homework...\n\nMeiosis ends with a different amount of cells, and the cells as a result of meiosis only have 1/2 of the chromosomes of the original cell, where in mitosis, the daughter cells have the same amount of chromosomes.\n\nIn meiosis, there are two divisions. \n\nMeiosis occurs only in reproductive cells. For example, in humans, sperm has 23chromosomes and eggs have 23 chromosomes, a normal human cell has 46, which is why it takes two reproductive cells to create a living thing.\n\nI could go on and on, but I have to return to my own work.
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See the following link for an animation and explanation of Mitosis. Hope that helps. \n\nIn most cases mitosis occurs by the parent cell diving into daughter cells (usually 2).\n\nhttp://www.cellsalive.com/mitosis.htm
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Because, these cells do not have the microtubule apparatus to do so. The erect a cell wall, instead. Plant cells do not have centrioles.
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In plant cells Cell Plates appear after division of nuclease which divide it in to two equal daughter cell, while in animal cell after nuclease division cell membrane receive external pressure which devoid Cell in to two equal cells.