Question

channel proteins for facilitated diffusion (b2.1.6) differentiate between channel proteins and carrier proteins

Explanation:

Channel proteins form pores for passive transport of substances down their concentration gradient, allowing specific ions or small - molecules to pass through quickly. Carrier proteins bind to specific substances, change shape, and transport them across the membrane. They can work in both passive and active transport.

Answer:

Channel Proteins	Carrier Proteins
Facilitate passive transport mainly	Can be passive or active transport
Usually faster for small ions/solutes	Slower as involves binding - shape change