Tag Archives: cell membrane

Active transport: The Specially designed Cell Membrane Mechanism

active transport - cell membrane mechanism

Active transport is a cellular mechanism by which molecules cross the cell membrane against a concentration gradient, that is, from an area of low concentration to high concentration other with the consequent energy. Typical examples are the sodium-potassium pump, the pump simply calcium or glucose transport. (Check-in Biochemistry Dictionary) In …

Read More »

What is the Structure, Compositions and Functions of Plasma membrane?

plasma membrane

The Plasma membrane is considered to conform to the fluid mosaic model of the cell membrane proposed by singer and Nicholson. The membrane is composed of proteins, lipids, and carbohydrates. There is wide variation in the lipid-protein ratio between different cell membrane. Lipids are asymmetrically distributed within the bilayer of …

Read More »