Definitions for cell membrane
cel·l mem·brane

Princeton's WordNetRate this definition:5.0 / 1 vote

1. cell membrane, cytomembrane, plasma membranenoun

   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"

WiktionaryRate this definition:1.0 / 1 vote

1. cell membranenoun

   The semipermeable membrane that surrounds the cytoplasm of a cell.

WikipediaRate this definition:0.0 / 0 votes

1. Cell membrane

   The cell membrane (also known as the plasma membrane (PM) or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates and protects the interior of all cells from the outside environment (the extracellular space). The cell membrane consists of a lipid bilayer, made up of two layers of phospholipids with cholesterols (a lipid component) interspersed between them, maintaining appropriate membrane fluidity at various temperatures. The membrane also contains membrane proteins, including integral proteins that span the membrane and serve as membrane transporters, and peripheral proteins that loosely attach to the outer (peripheral) side of the cell membrane, acting as enzymes to facilitate interaction with the cell's environment. Glycolipids embedded in the outer lipid layer serve a similar purpose. The cell membrane controls the movement of substances in and out of cells and organelles, being selectively permeable to ions and organic molecules. In addition, cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity, and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall and the carbohydrate layer called the glycocalyx, as well as the intracellular network of protein fibers called the cytoskeleton. In the field of synthetic biology, cell membranes can be artificially reassembled.

ChatGPTRate this definition:0.0 / 0 votes

1. cell membrane

   A cell membrane, also known as the plasma membrane, is a biological barrier that separates the interior of all cells from the outside environment. It's a semi-permeable structure composed mainly of lipids and proteins, and plays a crucial role in protecting the cellular components, regulating the transport of substances in and out of the cell, maintaining cell shape, and transmitting signals to the cell interior.

WikidataRate this definition:4.8 / 4 votes

1. Cell membrane

   The cell membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the lipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signaling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Cell Membrane

   The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells.

Matched Categories

1. • Semipermeable Membrane

How to pronounce cell membrane?

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How to say cell membrane in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of cell membrane in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of cell membrane in Pythagorean Numerology is: 4

Examples of cell membrane in a Sentence

1. Megan Huylo:

   It’s going to protect our cells from any damage from free radicals that’s going to damage skin cell membrane.

2. Peter Holme Jensen:

   It is essentially the mechanism that allows water to cross the cell membrane of living cells.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=cell membrane
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cell_Membrane
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cell_Membrane
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cell membrane