Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 4 - No. 45)
What is the role of carrier proteins in active transport?
To provide a channel for water to pass through.
To bind to the molecules and facilitate their movement across the membrane.
To break down ATP to provide energy.
To create a concentration gradient.
Explanation
Carrier proteins bind to specific molecules and change shape to move them across the cell membrane during active transport.
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