Biomembrane
The first cell probably came into being when a membrane formed, enclosing a small volume of aqueous solution and separating it from the rest of the universe
Biomembrane
- Plasma membrane
- Membrane bound organelles (Eukaryotes)
Defines the cell or organelles boundaries and separates the inside from the outside
Regulate the molecular traffic across that boundary (selective permeability-Retain certain compounds and ions within cells or organelles)
Biological energy conservation(Catalyze ATP synthesis- prokaryotes plasma
Membrane- mitochondria)
Cell-to-cell communication(receptors sense extracellular signals and trigger molecular changes in the cell-adhesion molecules hold neighboring cells together)
Biomembrane Structure