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plasma membrane

Syllabification: plas·ma mem·brane

Definition of plasma membrane in English:

noun

Biology
A microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm.
Example sentences
  • The electrode tip pushes through the cell wall tending to jump quickly across the plasma membrane into either the cytoplasm or the vacuole.
  • Cholesterol is one of the major lipid components of the plasma membrane of mammalian cells.
  • Among all the fluxes in the whole plant, the passage of through the plasma membrane of root cells has been intensively studied.

Definition of plasma membrane in:

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