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Where do the microtubules of the spindle originate during mitosis in both plant and animal cells?
Wiki User
∙ 16y ago
The microtubles of the mitotic spindle originate from the centrosome.
Wiki User
∙ 16y ago
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What does not distinguish mitosis in plant cells from mitosis in animal cells?
A plant cell, during mitosis, has no centriole, so in the second phase [metaphase], spindle fibers do not connect to the [missing] centriole that move in opposite directions in animal cell mitosis. Also, instead of having a cleavage, like in animal cell mitosis, a cell plate forms. Animal cells do not have centrioles so the spindle fibers do not connect to centrioles and move to opposite poles, spindle fibers are instead formed by microtubules. Additionally, in the telophase in plant cells, the cytoplasm does not narrow or compress, a cell plate is instead formed in the centre of the cell and this divides it into two daughter cells.
What is a cytoskeletal that pulls chromosomes apart?
CentriolesCentrioles are log-like structures that appear during cell division in animal cells and pull the chromosomes apart.
How and where is a spindle formed?
Prophase IIThe spindle is formed under the direction of the microtubule organizing center (MTOC).In an animal cell, the MTOC is the centrosome, which contains two centrioles. In plant cells, it seems that the MTOC is the nuclear envelope. There is no centrosome or centriole in the cells of a plant.The spindle develops in the cytoplasm of a cell in prophase of either mitosis or meiosis. It is a barrel-shaped structure, made up of many spindle fibers, which are microtubules of the cytoskeleton. The two ends of the spindle taper towards points that are called the poles of the spindle, and these two points in the cytoplasm of the mother-cell will be the sites of formation of the daughter-nuclei in telophase.
What does microtublues do?
Microtubules are important for maintaining cell structure within the cell. Microtubules are made of tubulin. They also make up flagella. In animal cells, nine triplets of microtubules make up the two centrioles which are important in cell division. The mitotic spindle is made of microtubules which aid the cell replication process by pulling apart sister chromatids.
Produce spindle fibers?
Centrioles. They are visible during metaphase, the second stage of mitosis. Added: Centrosomes. Centrioles are present in animal cells but are, seemingly, not needed to mount a spindle apparatus. Plant cells get along very well without centrioles.
Why mitosis in animal cell is amphi astral?
An aster is formed at each pole of the spindle in animal mitosis. hence mitosis in animal cell is amphi astral.
How are centriole and spindle alike?
They are both related to animal mitosis.They are both made from microtubules.
What does not distinguish mitosis in plant cells from mitosis in animal cells?
A plant cell, during mitosis, has no centriole, so in the second phase [metaphase], spindle fibers do not connect to the [missing] centriole that move in opposite directions in animal cell mitosis. Also, instead of having a cleavage, like in animal cell mitosis, a cell plate forms. Animal cells do not have centrioles so the spindle fibers do not connect to centrioles and move to opposite poles, spindle fibers are instead formed by microtubules. Additionally, in the telophase in plant cells, the cytoplasm does not narrow or compress, a cell plate is instead formed in the centre of the cell and this divides it into two daughter cells.
What kind of fibers do animal and plants have during mitosis?
spindle
What is a cytoskeletal that pulls chromosomes apart?
CentriolesCentrioles are log-like structures that appear during cell division in animal cells and pull the chromosomes apart.
What organelle structures involved in mitosis in animal cells only?
In animal cells... Centrioles, asters and the spindle fibers.
The fiber-like proteins units that make up the cells cytoskeleton the mitotic spindle and the centrioles in animal cells are?
microtubules
What fiber-like protein units make up the cell's cytoskeleton the mitotic spindle and the centrioles in animal cells?
microtubules
What function do perform in animal cell mitosis?
Centrioles are found in animal cells, and they help to organize the assembly of microtubules during cell division. During the interphase stage of mitosis, a pair of centrioles replicates into two pairs of centrioles.
What functions do centrioles perform an animal cell mitosis?
Centrioles are found in animal cells, and they help to organize the assembly of microtubules during cell division. During the interphase stage of mitosis, a pair of centrioles replicates into two pairs of centrioles.
How and where is a spindle formed?
Prophase IIThe spindle is formed under the direction of the microtubule organizing center (MTOC).In an animal cell, the MTOC is the centrosome, which contains two centrioles. In plant cells, it seems that the MTOC is the nuclear envelope. There is no centrosome or centriole in the cells of a plant.The spindle develops in the cytoplasm of a cell in prophase of either mitosis or meiosis. It is a barrel-shaped structure, made up of many spindle fibers, which are microtubules of the cytoskeleton. The two ends of the spindle taper towards points that are called the poles of the spindle, and these two points in the cytoplasm of the mother-cell will be the sites of formation of the daughter-nuclei in telophase.
Do human cells have centrioles?
No they do not. Animal cells have centrosomes, which are defined as a pair of cetrioles. Plants do not have centrioles, so they cannot have centrosomes. Plants have microtubule organizing centers (MTOCs). Centrosomes (in animals) and MTOCs (in plants) are where microtubules of the spindle originate during mitosis
