Answer:
Plasma membrane is also known as cell membrane which protects every living cells from outside environments.
- Plasma membrane composed of phospholipids bilayer embedded with highly charged molecules such as proteins and carbohydrates.
- Plasma membrane is selective in nature to ions (organic molecules) and regulates the movements of substances inside and outside of the cells. (regulates the transport of substances)
- Plasma membrane keeps out toxic substances from the cell acting as a barrier.
- They contain receptors and channels which allow specific molecules such as ion, nutrients, metabolic products, that mediate the extracellular and cellular activities.
