Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 4 - No. 31)
What is the role of channel proteins in facilitated diffusion?
To provide energy for the transport process.
To bind to molecules and actively transport them across the membrane.
To create a pathway for specific molecules to cross the membrane.
To prevent any molecules from crossing the membrane.
Explanation
Channel proteins create a pathway for the facilitated diffusion of specific molecules across the cell membrane.
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