Dictionary » C » Cytoplasm




(Science: Cell Biology)

In eukaryotic cells, the cytoplasm is that part of the cell between the cell membrane and the nuclear envelope. It is the jelly-like substance in a cell that contains the cytosol, organelles, and inclusions, but not including the nucleus. In fact, the cytoplasm and the nucleus make up the protoplasm of a eukaryotic cell.

In prokaryotic cells that do not have a well-defined nucleus, the cytoplasm is simply everything enclosed by the cell membrane. It therefore contains the cytosol, and all the other cellular components, including the chromosome in the nucleoid region.


The cytoplasm (of both eukaryotes and prokaryotes) is where the functions for cell expansion, growth, metabolism, and replication are carried out.

Word origin: Gk kyto-, comb. form of kýtos container, receptacle, body + Gk plásma.

Related forms: cytoplasmic (adjective).

Compare: protoplasm, cytosol.
See also: cell.

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identify bacterias in Gram stain kit &The Giemsa Stain Kit

... tissues and certain microorganisms. This kit may be used on formalin-fixed, paraffin-embedded or frozen sections. Nuclei: Blue/Violet Cytoplasm: Light Blue Collagen: Pale Pink Muscle Fibers: Pale Pink Erythrocytes: Gray, Yellow or Pink Rickettsia: Reddish-Purple Helicobacter Pylori: ...

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by scytek
Sat Mar 15, 2014 1:11 pm
Forum: General Discussion
Topic: identify bacterias in Gram stain kit &The Giemsa Stain Kit
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Views: 61

Re: nuclear DNA binding

... sequence. It's useful to know where the protein is interacting with the DNA. That doesn't eliminate the possibility that the protein also binds cytoplasmic DNA, but if there is nuclear DNA binding you can nail that down. You could also fluorescent-tag the protein and microinject it or otherwise ...

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by jonmoulton
Tue Jan 22, 2013 6:39 pm
Forum: Molecular Biology
Topic: nuclear DNA binding
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nuclear DNA binding

... the pull-downed material against negative (matrix protein) and positive control (like Creb) would be a good idea... But there is also DNA in the cytoplasm and I want to exclude cytoplasmic binding elegantly. Would be interested to know what you guys think... Thanks for any response!

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by Balls
Tue Jan 22, 2013 9:03 am
Forum: Molecular Biology
Topic: nuclear DNA binding
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where is bacteriochlorophyl stored in a bacteria cell ?>

Is that in clorosomes or in the cytoplasm ?

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by prasadif
Sun Jul 29, 2012 3:33 am
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Topic: where is bacteriochlorophyl stored in a bacteria cell ?>
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pichia pastoris

hi all Can anyone tell me about the expression in pichia pastoris..Is it the same like eukayote? that is from the nucleus to cytoplasm ,i am little bit confused if someone has worked on it kindly help me. regards sameer

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by siddharthsameer
Sun Jul 15, 2012 7:24 am
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Topic: pichia pastoris
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