Question

What is a plasma membrane

Answer 1

a microscopic membrane of lipids and proteins which forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and regulates the passage of molecules in and out of the cytoplasm.

Answer 2

$\bf\red{\underline{The\:Plasma\:Membrane:-}}$

→ The boundary between the inside and the outside of any cell is the plasma membrane.

→ In all cells, this cell boundary is composed of a lipid bilayer whose hydrophobic (water-fearing) tails are sandwiched between the hydrophilic (water-loving) heads.

→ Proteins embedded within or attached to the lipid bilayer allow the movement of water-soluble substances into and out of the cell.