.
Phospholipids form the main fabric of the membrane,
but proteins determine most of the membrane's
functions
磷脂構成了膜的主要結構,但蛋白質決定了膜的大部分功能
The protein composition of membranes varies among
cells within an organism, and among intracellular
membranes within a cell
膜的蛋白質組成在生物體內的細胞之間以及細胞內的細胞內膜之
間變化