cell membrane
noun
plural cell membranes
: a membrane of a cell
especially
: a semipermeable limiting layer of cell protoplasm consisting of a fluid phospholipid bilayer with intercalated proteins : plasma membrane
Despite being much maligned in the popular press, cholesterol plays a crucial role in organizing cell membranes and controlling their physical properties. —
Amanda Yarnell
Amanda Yarnell … a cascade of reactions culminating in the transfer of a phosphate group to a protein complex that carries ions across the cell membrane. —Science News
Science News Examples of cell membrane in a Sentence
Recent Examples on the Web
But physicists are starting to realize that cell membranes have surprising properties.
—Douglas Fox, Scientific American, 1 Apr. 2018
On Earth, fatty acids perform various functions in living organisms, including the formation of cell membranes.
—Margherita Bassi, Smithsonian Magazine, 26 Mar. 2025
That includes things like the lipids in our cell membranes, the nucleotides that encode our genes, the amino acids that build most of the working bits of our cells, and other molecules built around bonds between carbon and nitrogen atoms.
—Kiona N. Smith, Space.com, 19 Mar. 2025
Magnesium is needed to transport potassium and calcium across cell membranes and maintain normal heart rhythms.
—Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 26 Feb. 2025
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Douglas Fox, Scientific American, 1 Apr. 2018
On Earth, fatty acids perform various functions in living organisms, including the formation of cell membranes.
—Margherita Bassi, Smithsonian Magazine, 26 Mar. 2025
That includes things like the lipids in our cell membranes, the nucleotides that encode our genes, the amino acids that build most of the working bits of our cells, and other molecules built around bonds between carbon and nitrogen atoms.
—Kiona N. Smith, Space.com, 19 Mar. 2025
Magnesium is needed to transport potassium and calcium across cell membranes and maintain normal heart rhythms.
—Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 26 Feb. 2025
See All Example Sentences for cell membrane
Cite this Entry
“Cell membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cell%20membrane. Accessed 22 Apr. 2025.
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