The cell prepares itself for division by doubling all of its organelles and chromosomes and expands.
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Prophase
The duplicated chromosomes become condensed and more tightly wound. Mitotic spindles made of proteins called microtubles form on the edge and elongate the cell.
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Prometaphase
The membrane around the nucleus (called the nuclear envelope) breaks down so that the condensed chromosomes touch the microtubles of the mitotic spindles.
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Metaphase
The pairs of chromosomes line up in the middle (the equator) of the cell.
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Anaphase
pairs of chromosomes (also called sister chromatids) are drawn to opposite sides of the cell so that there is a copy of the cell's DNA at either side of the cell. The mitotic spindles get shorter to begin to allow the cell to divide.
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Telophase
Nuclear envelopes start to form around the separate pairs of sister chromatids to form a pair of nuclei. The cell has almost separated.
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Cytokinesis in animal cells
A fiber ring in the middle of the cell, containing a protien called actin, contracts and pulls the cell membrane towards the center in order to squeeze the two new daughter cells apart.
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Cytokinesis in plant cells
A cell plate takes the place of the meta plate and grows between the two new cells. Then it becomes a membrane that instills itself into the cell wall of each of the daughter cells.
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Other cards in this set
Card 2
Front
The duplicated chromosomes become condensed and more tightly wound. Mitotic spindles made of proteins called microtubles form on the edge and elongate the cell.
Back
Prophase
Card 3
Front
The membrane around the nucleus (called the nuclear envelope) breaks down so that the condensed chromosomes touch the microtubles of the mitotic spindles.
Back
Card 4
Front
The pairs of chromosomes line up in the middle (the equator) of the cell.
Back
Card 5
Front
pairs of chromosomes (also called sister chromatids) are drawn to opposite sides of the cell so that there is a copy of the cell's DNA at either side of the cell. The mitotic spindles get shorter to begin to allow the cell to divide.
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