• plasma
  • Endocytosis and its counterpart, exocytosis, are used by all cells because most chemical substances important to them are large polar molecules that cannot pass through the hydrophobic plasma or cell membrane by passive means. (wikipedia.org)
  • In addition, it suggests that the two apparently distinct clathrin assembly modes, namely coated pits and coated plaques, observed in experimental investigations might be a consequence of varied tensions in the plasma membrane. (wikipedia.org)
  • Caveolae are the most common reported non-clathrin-coated plasma membrane buds, which exist on the surface of many, but not all cell types. (wikipedia.org)
  • They can constitute up to a third of the plasma membrane area of the cells of some tissues, being especially abundant in smooth muscle, type I pneumocytes, fibroblasts, adipocytes, and endothelial cells. (wikipedia.org)
  • Macropinocytosis, which usually occurs from highly ruffled regions of the plasma membrane, is the invagination of the cell membrane to form a pocket, which then pinches off into the cell to form a vesicle (0.5-5 µm in diameter) filled with a large volume of extracellular fluid and molecules within it (equivalent to ~100 CCVs). (wikipedia.org)
  • Animal cells , plant cells , prokaryotic cells , and fungal cells have plasma membranes. (thoughtco.com)
  • It is a component of the cell plasma membrane that modulates cell signal transduction events, and appears to concentrate in lipid rafts[citation needed]. (wikipedia.org)
  • Plasma Membrane - Regulates the movement of substances in and out of the cell. (getrevising.co.uk)
  • The extracellular portion of the receptor is composed of 8 consecutive C-type carbohydrate recognition domains (CRDs) closest to the plasma membrane, followed by a single fibronectin type II repeat domain and an N-terminal cysteine-rich domain. (wikipedia.org)
  • The C-type CRDs are each separated by linker regions of 10-20 amino acids containing a number of proline residues, whose cyclic side chain is fairly rigid and favours a conformation in which the N-terminal cysteine-rich domain is extended as far away from the plasma membrane as possible. (wikipedia.org)
  • what is unique about the plasma membrane? (brainscape.com)
  • The cell membrane (plasma membrane or plasmalemma) encloses or covers all cell types and is 7 microns thick (1000 times smaller than the RBC). (edu.au)
  • Most lipids are synthesized in yeast either in the endoplasmic reticulum, lipid particles, or the mitochondrion, with little or no lipid synthesis occurring in the plasma membrane or nuclear membrane. (wikipedia.org)
  • vesicle
  • The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. (wikipedia.org)
  • A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. (wikipedia.org)
  • pores
  • The outer membrane is also continuous with the inner nuclear membrane since the two layers are fused together at numerous tiny holes called nuclear pores that perforate the nuclear envelope. (wikipedia.org)
  • cells
  • Cholesterol is not found in the membranes of plant cells. (thoughtco.com)
  • Endocrine cells produce hormones that travel through the blood to reach all parts of the body. (wikipedia.org)
  • The first proposal that the membranes within cells form a single system that exchanges material between its components was by Morré and Mollenhauer in 1974. (wikipedia.org)