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单词 unit membrane
释义

unit membrane

noun Biology
A lipoprotein membrane which encloses many cells and cell organelles and is composed of two electron-dense layers enclosing a less dense layer.A cholesterol-containing unit membrane defines the cell body; however, there is no periplasm providing rigidity for the cell....
  • The ER is made up of two unit membranes enclosing a lumen in between.
  • The inner membrane composition is phospholipid with many integral proteins (as in bacterial unit membranes)
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