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Cellular Membrane Permeability

Meaning

Cellular Membrane Permeability defines the degree to which the lipid bilayer structure selectively allows passage of specific molecules, including hormones, nutrients, and waste products, across the cell boundary. This characteristic is vital because it directly governs the cell’s access to the signaling molecules circulating in the extracellular fluid. When permeability is compromised, the cell cannot efficiently receive or expel necessary components for its function. We must consider this dynamic property when assessing cellular responsiveness.