Dictionary » C » Cytokinesis




The division of the cytoplasm and the plasma membrane following the division of the nucleus resulting into two cells, each having its own nucleus and cytoplasm surrounded by a plasma membrane.


This process begins during the late stage of mitosis (Telophase) and meiosis (Telophase II). In animal cells (and in some plant cells) it is marked by a constriction of the cell membrane called the cleavage furrow. In most plant cells it happens when an expanding cell plate forms across the center of the cytoplasm called the phragmoplast.

Word origin: Greek kyto-, comb. form of kýtos container, receptacle, body + Greek kīnēsis, movement.

Related forms: cytokinetic (adjective).

Compare: karyokinesis.
See also: mitosis.

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Cell Organelles

... the cytoskelaton disassembles to make the mitotic spindle, the organelles just float around and they can float into the daughter cell right before cytokinesis occurs, but I'm curious to know how the cells make more organelles if they have too few or something. Thanks!

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by RandomStudent
Mon Jan 28, 2013 3:48 am
Forum: Cell Biology
Topic: Cell Organelles
Replies: 3
Views: 4734

Free-flowing cells and those that are stuck together?

I've just been thinking about the development of an embryo from the zygote stage. How is it that when cytokinesis takes place, the cells all stick together in a little ball? But then, later in life, some are not bound to others (red blood cells, sperm cells, etc.). How is ...

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by SheffJoe
Tue May 29, 2012 8:04 pm
Forum: Cell Biology
Topic: Free-flowing cells and those that are stuck together?
Replies: 2
Views: 2375

Incubation of Soil Fungi

... The cfu and od measurement are not useful for mycelial fungi such as Trichoderma spp. the growth of which takes place by apical extension without cytokinesis (cell division). One or a 1000 distinct fungal cells can give 1 cfu. Similarly serial dilution is invalid procedure to reduce inoculum concentration. ...

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by JorgeLobo
Sat Nov 05, 2011 12:52 am
Forum: Microbiology
Topic: Incubation of Soil Fungi
Replies: 4
Views: 3027

Why might mitosis be thought of as cellular immortality?

... might mitosis be thought of as cellular immortality? I don't know if this may help, but I do know that once the sister daughter cells are formed (cytokinesis) they enter interphase and the whole cycle repeats.

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by reyrey389
Thu Nov 03, 2011 6:51 am
Forum: Cell Biology
Topic: Why might mitosis be thought of as cellular immortality?
Replies: 1
Views: 1213

Re: 2 questions about mitosis. Please Help?

as you can see on this picture , the start of cytokinesis may vary

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by JackBean
Mon Oct 31, 2011 7:23 am
Forum: Cell Biology
Topic: 2 questions about mitosis. Please Help?
Replies: 2
Views: 2443
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