plasma membrane

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plasma membrane

cell′ mem`brane


n.
the semipermeable membrane enclosing the cytoplasm of a cell.
[1865–70]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.plasma membrane - a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cellplasma membrane - a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell; "all cells have a cell membrane"
cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
semipermeable membrane - a membrane (as a cell membrane) that allows some molecules to pass through but not others
References in periodicals archive ?
This dye (Molecular Probes) is a high-affinity nucleic acid stain that penetrates cells with damaged plasma membranes and enhances its fluorescence by more than 500-fold upon nucleic acid binding (Reyes-Zurita et al.
iGluRs are complexes of various subunits creating ion channels in the cell plasma membranes that allow for influx or efflux of cations, and play a critical role in neural function.
This included disorganization of the cytoplasm and loss of organelles, a marked increase in the number and size of lysosomes, the disruption of plasma membranes, the loss of nuclear membranes, nucleoli, and the fragmentation of condensed chromatin.
For sperm of species known for higher resistance against cold susceptibility, the cholesterol content is high (rabbit and human) whereas plasma membranes of the bull, ram and boar possess lower cholesterol levels, which are considered to be sensitive (Bailey et al.
The second grant will evaluate how the alpha(1)-proteinase inhibitor (A1PI) interacts with lung cells and plasma membranes.
Although others have reported antibiosis against gram negative bacteria, their findings, like ours, determined thyme to be consistently more effective against gram positive species (Pioro-Jabrucka 2007); as is thymol which acts on the plasma membranes of gram positive bacteria and giardia (Cristani 2007, Evans 2000, Machado 2010).
Lipid of Plasma membranes prepared from oat root cells: effects of induced water-deficit tolerance.
In colon adenocarcinoma and cell plasma membranes this antigen is expressed on various glyco-proteins with molecular masses ranging in size from [+ or -]100 kDa to >200 kDa.
Enriched fractions of nuclei, mitochondria, endoplasmic reticulum, plasma membranes, and cytosol can provide insight into the potential effects of a toxicant on a particular site within subcellular structures or upon protein trafficking or signaling pathways.
Ultrastructurally, all of the apoptotic cells showed continuous plasma membranes, apparent aggregation of nuclear chromatin, highly condensed cytoplasm, and nearly intact organelles (Figure 2f).
We could see the cell plasma membranes, and the microfilaments were being disrupted.
Over the past decade, he and his co-workers also have observed that the plasma membranes surrounding the cells of soybean plants contain stress-sensitive proteins very similar to those in the membranes enclosing insect nerves.

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