GENERAL HISTOLOGY

Detailed explanation-1: -What Do Membranes Do? Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot.

Detailed explanation-2: -The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.

Detailed explanation-3: -The cell’s outer membrane acts as a gate, preventing intruders from invading the cell.

Detailed explanation-4: -The cell membrane, also called the plasma membrane, functions more like a bag of tightly woven fabric than like a wall. The membrane allows some molecules, including gases like oxygen and carbon dioxide, to pass readily through its surface.

Detailed explanation-5: -Selective permeability of the cell membrane refers to its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others.