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;
"all cells have a cell membrane"
双语例句
Complement enzymes attack antigens by puncturing the cell membrane. 补体酶通过刺穿细胞膜来攻击抗原。
Cholesterol is an essential component in cell membranes. 胆固醇是细胞膜必要的成分。