Loading...
  • cell
  • In looking at simulations of resting membrane changes to a neuron in low Na+ ECF solution, I see that the membrane potential in the intracellular cell body and intracellular axon is the same voltage/value. (biology-online.org)
  • Even in other simulations like where the ECF is high in K+, the voltage reading is the same between the intracellular cell body and intracellular axon. (biology-online.org)
  • and therefore, the intracellular readings should always be the same whether you measure intracellular cell body or intracellular axon. (biology-online.org)
  • Using these cells we then looked at the evolution of the surface membrane area during the cell cycle using the fluorescence membrane probe TMA-DPH. (biologists.org)
  • We observed that 14% of the membrane endocytosed was not recycled, but was replaced at the cell surface by newly formed membrane from biosynthetic pathways. (biologists.org)
  • We discovered several previously unknown features of membrane and MT organization during S2 cell mitosis. (biomedcentral.com)
  • Here, we show that copines-1, -2, -3, -6 and -7 respond differently to a methacholine-evoked intracellular increase in calcium in human embryonic kidney cell line-293 cells, and that their membrane association requires different levels of intracellular calcium. (ox.ac.uk)
  • Since the inception of the lipid raft hypothesis in 1997 ( 1 ), a profusion of studies have reported roles for these cholesterol-enriched membrane microdomains in organization of cell signaling. (jimmunol.org)
  • The ability of these ligands to permeate the cell membrane and their cellular retention was examined under various conditions using SK-N-MC neuroepithelioma cells. (aspetjournals.org)
  • It can be concluded that [ 14 C]Bp4eT more effectively permeated the cell membrane and evaded rapid efflux in contrast to [ 14 C]PIH. (aspetjournals.org)
  • The basic function of the cell membrane is to protect the cell from its surroundings. (wikipedia.org)
  • In the field of synthetic biology, cell membranes can be artificially reassembled . (wikipedia.org)
  • While Robert Hooke 's discovery of cells in 1665 led to the proposal of the Cell Theory , Hooke misled the cell membrane theory that all cells contained a hard cell wall since only plant cells could be observed at the time. (wikipedia.org)
  • By the second half of the 19th century, microscopy was still not advanced enough to make a distinction between cell membranes and cell walls. (wikipedia.org)
  • However, some microscopists correctly identified at this time that while invisible, it could be inferred that cell membranes existed in animal cells due to intracellular movement of components internally but not externally and that membranes weren't the equivalent of a cell wall to plant cell. (wikipedia.org)
  • It was also inferred that cell membranes weren't vital components to all cells. (wikipedia.org)
  • Many refuted the existence of a cell membrane still towards the end of the 19th century. (wikipedia.org)
  • In 1890, an update to the Cell Theory stated that cell membranes existed, but were merely secondary structures. (wikipedia.org)
  • In 1925 it was determined by Fricke that the thickness of erythrocyte and yeast cell membranes ranged between 3.3 and 4 nm, a thickness compatible with a lipid monolayer. (wikipedia.org)
  • The paucimolecular model immediately became popular and it dominated cell membrane studies for the following 30 years, until it became rivaled by the fluid mosaic model of Singer and Nicolson (1972). (wikipedia.org)
  • Despite the numerous models of the cell membrane proposed prior to the fluid mosaic model , it remains the primary archetype for the cell membrane long after its inception in the 1970s. (wikipedia.org)
  • Morphometric analysis of the relative membrane areas at the cell surface and IPMCs confirmed a large enrichment of virus assembly events in IPMCs. (biomedcentral.com)
  • cholesterol
  • These findings confirm previous assumptions that the membrane sphingomyelin content is an important determinant of the overall distribution of cholesterol within intact cells. (biochemj.org)
  • 200 nm), cholesterol- and sphingolipid-enriched membrane microdomains, likely present in all eukaryotic cells, that compartmentalize select signaling and functional events. (jimmunol.org)
  • rapidly
  • When [Cl](o) was changed at a constant [K](o) the membrane potentials changed rapidly and symmetrically by a small value and remained constant for 30 min.4. (biomedsearch.com)
  • responses
  • 1. The membrane responses of rabbit papillary muscles to rapid changes in [K](o) and [Cl](o) were measured with open-tipped micropipettes and with closed micropipettes made from K-selective glass.2. (biomedsearch.com)