Endoplasmic Reticulum
endoplasmic reticulum
plasma membrane and other membranes are the same
No. Prokaryotic cells do not have nuclear membrane, nor any membrane-bound organelle.
The plasma membrane is a bi-layer, so two.
The nuclear membrane is double-layered to provide additional protection and support for the delicate genetic material within the nucleus. This extra thickness helps to regulate the movement of molecules in and out of the nucleus, ensuring proper functioning of the cell.
There isn't a specific number of membranes that a eukaryote has, mainly because it is unknown how many organelles are in a cell and how many cells are in an organism. A eukaryotic cell is surrounded by one plasma membrane, but most organelles within the membrane are also covered with membranes, sometimes two in case of mitochondria or chloroplast.
The membrane that separates the content of the cell from the surrounding environment is called the cell membrane or plasma membrane. It is a selectively permeable barrier that regulates the passage of substances in and out of the cell.
A phospholipid bilayer.
The diffrence is that the cell membrane is just a barrier between the exterior enviroment and the interior of the cell, while the cell surface membrane exerts control over what enters/leaves the cell! :)
The membrane is continually being lost from the plasma membrane by endocytosis
The membrane is continually being lost from the plasma membrane by endocytosis
The nuclear membrane separates the content of the cytoplasm from those of the nucleoplasm. It also regulates the exchange of materials between the cytoplasm and nucleoplasm. The inner membrane of the nuclear membranes is involved in protein synthesis.