Cell Transport - Facilitated Diffusion

Question 1

facilitated diffusion

Answer 1

• Moving from high to low
• Moving through protein channels in the cell membrane which allow certain molecules across the membrane (large and charged molecules)
• Example: Glucose moving in and out of red blood cells using a channel
• Molecules match their channels so there are a lot of combinations (like the lock and key for enzymes)​
• there are hundreds of different protein channels for different molecules
• requires energy