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Cytoplasm

Definition

noun

(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.


Supplement

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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Methylene Blue Solution use in staining variety of bacteria?

... (Corynebacterium diphtheria, Haemophilus influenzae, Neisseria, etc.) and leukocytes. This reagent produces dark blue nuclei with lighter blue cytoplasm. Nuclei: Dark Blue Cytoplasm: Light Blue Corynebacterium Diphtheria: Blue Granules Escherichia Coli: Blue Rods Streptococcus Pyogenes: Blue ...

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by scytek
Sun Feb 22, 2015 9:22 am
 
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 260

Elastic cytoplasm film.

cytoplasm is liquid, so you cannot make it to form a membrane, unless you'd have two membranes holding the cytoplasm in between

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by JackBean
Tue May 13, 2014 4:50 pm
 
Forum: General Discussion
Topic: Elastic cytoplasm film.
Replies: 4
Views: 3794

Re: Elastic cytoplasm film.

It sounds like a black lipid membrane system is the sort of system you are looking for. However, the membranes are fairly unstable, so I doubt you could set one up that would last for months. http://en.wikipedia.org/wiki/Model_lipid_bilayer

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by jonmoulton
Wed May 07, 2014 6:06 pm
 
Forum: General Discussion
Topic: Elastic cytoplasm film.
Replies: 4
Views: 3794

Re: Elastic cytoplasm film.

I don't know what a "cytoplasm film" would be. A black membrane system comes to mind, in which a planar phospholipid bilayer is formed by painting the phospholipids across a small aperture in a rigid sheet separating two chambers ...

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by efteling7
Sat Apr 12, 2014 12:56 pm
 
Forum: General Discussion
Topic: Elastic cytoplasm film.
Replies: 4
Views: 3794

Re: Elastic cytoplasm film.

I don't know what a "cytoplasm film" would be. A black membrane system comes to mind, in which a planar phospholipid bilayer is formed by painting the phospholipids across a small aperture in a rigid sheet separating two chambers ...

See entire post
by jonmoulton
Fri Apr 11, 2014 2:36 pm
 
Forum: General Discussion
Topic: Elastic cytoplasm film.
Replies: 4
Views: 3794
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