Question

How does the design of the cell membrane enable substances to move across it?

Answer 1

Answer: The cell membrane is selectively permeable, allowing only a limited number of materials to diffuse through its lipid bilayer.

Explanation: During passive transport, materials move by simple diffusion or by facilitated diffusion through the membrane, down their concentration gradient.

Answer 2

The cell membrane is selectively permeable, allowing only a limited number of materials to diffuse through its lipid bilayer. ... During passive transport, materials move by simple diffusion or by facilitated diffusion through the membrane, down their concentration gradient.

Step-by-step explanation:

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