Transmembrane Proteins
Transmembrane proteins play essential roles in facilitated diffusion by acting as transporters or channels for molecules across the cell membrane:
- Transporter Proteins: Facilitate the movement of specific molecules across the membrane by undergoing conformational changes.
- Channel Proteins: Create hydrophilic pores allowing ions or small polar molecules to diffuse through the membrane down their concentration gradient.
These proteins ensure selective permeability, regulating the passage of substances and facilitating essential processes like nutrient uptake and ion transport.
Facilitated Diffusion:: Understanding the Process
Facilitated diffusion is an important biological process whereby molecules move across cell membranes with the help of transport proteins. Unlike simple diffusion, facilitated diffusion allows polar and charged molecules to traverse the membrane efficiently. Through specific protein channels or carriers, substances such as glucose, ions, and amino acids can passively move down their concentration gradients, ensuring essential nutrients enter cells while maintaining cellular equilibrium.
Table of Content
- What is Facilitated Diffusion?
- Facilitated Diffusion Diagram
- Factors Affecting Facilitated Diffusion
- Transmembrane Proteins
- Examples of Facilitated Diffusion
- Facilitated Diffusion VS Diffusion VS Active Transport
- Conclusion: Facilitated Diffusion
- FAQs – Facilitated Diffusion