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
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Vitamin E Vitamin E is a fat-soluble vitamin that protects cell membranes from damage.
—Melissa Nieves, Verywell Health, 2 May 2025
Scientists believe the long chains of molecules could be fragments of fatty acids, which are organic molecules that are chemical building blocks of life on Earth and help form cell membranes.
—Ashley Strickland, CNN Money, 29 Mar. 2025
Small molecules are organic compounds with a low molecular weight that are often used in drug development because of their ability to pass through cell membranes and interact with proteins inside the cell.
—Paul McClure 11, New Atlas, 11 May 2025
Shiseido is working to future proof its suncare using molecules extracted from the cell membrane of bacteria to filter out the harmful rays of the sun.
—Stephanie Hirschmiller, Forbes, 23 Dec. 2024
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Melissa Nieves, Verywell Health, 2 May 2025
Scientists believe the long chains of molecules could be fragments of fatty acids, which are organic molecules that are chemical building blocks of life on Earth and help form cell membranes.
—Ashley Strickland, CNN Money, 29 Mar. 2025
Small molecules are organic compounds with a low molecular weight that are often used in drug development because of their ability to pass through cell membranes and interact with proteins inside the cell.
—Paul McClure 11, New Atlas, 11 May 2025
Shiseido is working to future proof its suncare using molecules extracted from the cell membrane of bacteria to filter out the harmful rays of the sun.
—Stephanie Hirschmiller, Forbes, 23 Dec. 2024
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 27 May. 2025.
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