Dictionary » C » Cytosol

Cytosol

Definition

noun, plural: cytosols

(1) The liquid component of the cytoplasm surrounding the organelles and other insoluble cytoplasmic structures in an intact cell where a wide variety of cell processes take place.

(2) The aqueous portion of the cytoplasm in an intact cell consisting of water, organic molecules and dissolved ions.


Supplement

The cytosol serves as the site where many chemical reactions take place. In prokaryotes, it is where most metabolic reactions take place. In eukaryotes, it is where the organelles and other cytoplasmic structures are suspended.


Word origin: cyto- + sol(ution).
Related forms: cytosolic (adjective)

Synonyms:

Compare: cytoplasm.


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prokartotes

also, they have some some membrane cavities (sorry, I don't remember the actual name) and the DNA is not that freely in the cytosol, but rather in something called nucleoid.

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by JackBean
Tue Sep 03, 2013 9:47 am
 
Forum: Cell Biology
Topic: prokartotes
Replies: 4
Views: 2076

Re: Animal cell nucleus shape changes

... of the way; the nuclear membrane disappears for a while. Transcription occurs in the nucleus, but then the mRNA is moved out of the nucleus to the cytosol where translation takes place. Chromatin is an important part of the contents of the nucleus, but other structures (for instance splicosomes) ...

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by jonmoulton
Fri Nov 16, 2012 4:03 pm
 
Forum: Cell Biology
Topic: Animal cell nucleus shape changes
Replies: 7
Views: 9490

Re: Theories - Origin of Life

... efflux of tetracyclines carried out by by transmembrane spanning proteins which results in reduction of the concentration of tetracycline in the cytosol: (II) ribosomal protection, whereby tetracyclines no longer bind productively to the bacterial ribosome; or (III) chemical modification requiring ...

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by scottie
Fri Aug 17, 2012 3:46 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 906953

Re: Protein expression but no mRNA

... or prevent fusion of the endosome and lysosome. Further, the protein would have to escape from the endosome if it is to function in the cytosol. It may not be impossible for an intact protein to both survive and escape from the endocytotic pathway, but it is not common.

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by jonmoulton
Wed Feb 22, 2012 4:13 pm
 
Forum: Molecular Biology
Topic: Protein expression but no mRNA
Replies: 10
Views: 6840

Please Help with Homework (fairly easy questions)

... and nucleic acids A) 6. A screen door allows breezes to get in and aromas to get out but keeps out insects. Its function most resembles A) the cytosol. B) the plasma membrane. C) the ER lumen. D) a ribosome. B) 7. You are looking at a cell under a microscope and trying to determine whether ...

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by billyfisher100
Wed Feb 15, 2012 6:46 pm
 
Forum: General Discussion
Topic: Please Help with Homework (fairly easy questions)
Replies: 6
Views: 35070
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