Question

Why does facilitated diffusion require no energy?

Answer 1

Facilitated diffusion

1. Facilitated diffusion (otherwise called worked with transport or latent intervened transport) is the course of passive transport (instead of active transport) of particles or particles across a layer through necessary transmembrane proteins.
2. It is a type of transport that utilizes specialized transport proteins which carry the necessary molecules through the membranes.
3. Therefore this process does not need energy.
4. Polar particles and large particles in water can't diffuse uninhibitedly across the plasma layer because of the hydrophobic nature of the unsaturated fat tails of the phospholipids that contain the lipid bilayer.
5. Just non-polar particles, like oxygen and carbon dioxide, can diffuse effectively across the layer.