Epithelial cells ( which are non-circulating ) normally have active integrins at their cell membrane, helping maintain their stable adhesion to underlying stromal cells that provide signals to maintain normal functioning.

Epithelial to Mesenchmyal Cell Transition – loss of cell adhesion leads to constriction and extrusion of newly mesenchymal cell.

* Epithelial cell rests of Malassez, in dentistry, residual cells of Hertwig's epithelial root sheath

* Epithelial cell rests of Malassez

SPM serves as a surface receptor for immunoglobulins and some bacteria and is an activator of Epithelial Growth Receptors.

The research used rat PC12 cells and Human Lens Epithelial ( HLE ) cells cultured for four hours on the surface modified porous silicon.

The inner platinum ends ( DD ) of the wire receive a current from a battery of five Grove cell s and a Ruhmkorff coil of medium size.

Scanning electron microscope | Scanning electron micrograph s of diatom s showing the external appearance of the cell wall

Czech anatomist Jan Evangelista Purkyně is best known for his 1837 discovery of Purkinje cell s.

Each turn of the cell cycle divides the chromosome s in a cell nucleus.

Before the development of silicon power rectifier diodes, cuprous oxide and later selenium was used ; its low efficiency gave it a much higher forward voltage drop ( typically 1. 4 to 1. 7 V per " cell ", with multiple cells stacked to increase the peak inverse voltage rating in high voltage rectifiers ), and required a large heat sink ( often an extension of the diode ’ s metal substrate ), much larger than a silicon diode of the same current ratings would require.

Facilitated diffusion in cell membrane, showing ion channel s and carrier proteins

Construction of a high temperature proton exchange membrane fuel cell | PEMFC: Bipolar plate as electrode with in-milled gas channel structure, fabricated from conductive composite material | composite s ( enhanced with graphite, carbon black, carbon fiber, and / or carbon nanotube s for more conductivity ); Porous carbon papers ; reactive layer, usually on the polymer membrane applied ; polymer membrane. Condensation of water produced by a PEMFC on the air channel wall.

Specific enzyme-linked staining: Glucose-6-phosphate dehydrogenase deficiency | Glucose-6-Phosphate Dehydrogenase Isozyme | isoenzymes in Plasmodium falciparum infected Red blood cell s

# Transport of the hormone to the target cell ( s )

Hershey and Chase ’ s experiment concluded that little sulfur containing material entered the bacterial cell.

As previously indicated, this argument is merely a restatement of the Reverend William Paley ’ s argument applied at the cell level.

K cell ( s ) may refer to:

For instance, in endocytosis, a portion of the cell ’ s plasma membrane pinches off to form a vesicle that will eventually fuse with an organelle within the cell.

ATP levels differ at various stages of the cell cycle suggesting that there is a relationship between the abundance of ATP and the cell's ability to enter a new cell cyle .< ref name = Sweet1999 > ATP ’ s role in the basic functions of the cell make the cell cycle sensitive to changes in the availability of mitochondrial derived ATP.

Mitosis divides the chromosome s in a cell nucleus.

MPLS recognizes that small ATM cells are not needed in the core of modern networks, since modern optical networks () are so fast ( at 40 Gbit / s and beyond ) that even full-length 1500 byte packets do not incur significant real-time queuing delays ( the need to reduce such delays — e. g., to support voice traffic — was the motivation for the cell nature of ATM ).

Then on January 24, eight days before Stephen ’ s death, Afiarta dragged the blinded Sergius from his cell in the Lateran and had him strangled.

In wireless networks or cellular systems, the system spectral efficiency in bit / s / Hz / area unit, bit / s / Hz / site or bit / s / Hz / cell, is the maximum system throughput ( aggregate throughput ) divided by the analog bandwidth and some measure of the system coverage ara.

Experiments with the moss Physcomitrella patens, however, have shown that choice of the gelling agent — agar or Gelrite-does influence phytohormone sensitivity of the plant cell culture.

A cell culture that contains in its population cells with non-integrated F-plasmids usually also contains a few cells that have accidentally integrated their plasmids.

** Techniques: cell culture — microscope — SEM — TEM

Modern use of similar terms includes genetic engineering as well as cell and tissue culture technologies.

Biotechnology draws on the pure biological sciences ( genetics, microbiology, animal cell culture, molecular biology, biochemistry, embryology, cell biology ) and in many instances it is also dependent on knowledge and methods from outside the sphere of biology ( chemical engineering, bioprocess engineering, information technology, biorobotics ).

Chlamydia trachomatis inclusion bodies ( brown ) in a McCoy cell culture.

Common examples of in vitro experiments include ( a ) cells derived from multicellular organisms ( cell culture or tissue culture ), ( b ) subcellular components ( e. g. mitochondria or ribosomes ), ( c ) Cellular or subcellular extracts ( e. g. wheat germ or reticulocyte extracts ), or ( d ) purified molecules in the test tube ( often proteins, DNA, or RNA, either individually or in combination ).

For example, scientists developing a new viral drug to treat an infection with a pathogenic virus ( e. g. HIV-1 ) may find that a candidate drug functions to prevent viral replication in an in vitro setting ( typically cell culture ).

A more recent technique based on this method is Hoffmann's modulation contrast, a system found on inverted microscopes for use in cell culture.

Morphogenesis can take place also in a mature organism, in cell culture or inside tumor cell masses.

In cell culture cells that have the strongest adhesion move to the center of a mixed aggregates of cells.

siRNA is commonly used in laboratories to block the function of genes in cell culture.

Proteasome inhibitors have effective anti-tumor activity in cell culture, inducing apoptosis by disrupting the regulated degradation of pro-growth cell cycle proteins.

Stem cells can now be artificially grown and transformed ( differentiated ) into specialized cell types with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture.

Another direct approach is the isolation of the virus and its growth in cell culture using blood plasma ; this can take one to four weeks.

Yeast extract is the common name for various forms of processed yeast products made by extracting the cell contents ( removing the cell walls ); they are used as food additives or flavorings, or as nutrients for bacterial culture media.

The measurement of an exponential bacterial growth curve in batch culture was traditionally a part of the training of all microbiologists ; the basic means requires bacterial enumeration ( cell counting ) by direct and individual ( microscopic, flow cytometry ), direct and bulk ( biomass ), indirect and individual ( colony counting ), or indirect and bulk ( most probable number, turbidity, nutrient uptake ) methods.

* hydrogel-coated wells have been used for cell culture

A Petri dish ( or Petri plate or cell culture dish ) is a shallow glass or plastic cylindrical lidded dish that biologists use to culture cells or small moss plants.