plasma membrane

名词 plasma membrane:

1. 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
   同义词：cell membrane, cytomembrane

1. The living material of a plant or bacterial cell, including the protoplasm and plasma membrane after the cell wall has been removed.
   原生质体植物细胞或细菌细胞的有生命的部分，包括原生质和去掉细胞壁后的质膜