Answer :
Answer:
The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins.
The main structure of plasma membrane is made up of lipids.
What is a cell membrane?
- A membrane is what separates a cell's internal environment from its external environment.
- It has selective permeability.
- It is made up of a bilayer of lipids.
- It contains embedded proteins that may be central or peripheral.
Can all molecules cross the plasma membrane?
- No, all molecules cannot pass through plasma membrane.
- The compounds that can cross it are small nonpolar molecules or small, charged polar molecules.
- There are special proteins like carriers, channels etc., that aid in the transportation.
What are a few of the plasma membrane's functions?
Plasma membrane prevents undesirable and dangerous substances from entering the cell.
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