Like the plasma membrane, organelle membranes function to keep the inside "in" and the outside "out." This partitioning permits different kinds of biochemical reactions to take place in different ...

In contrast to prokaryotes, eukaryotic cells have not only a plasma membrane that encases the entire cell, but also intracellular membranes that surround various organelles. In such cells ...

This is also true of other membrane-bound structures like the nucleus and the Golgi apparatus (more on these later). Eukaryotes are organisms whose cells have a nucleus and other organelles enclosed ...