Transport of Solutes Across Membranes — NEET Biology
📚 Practice ConceptHow do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?
Which of the following statements regarding the plasma membrane and its transport mechanisms is NOT correct? S1: The fluid mosaic model describes the plasma membrane as a rigid, static structure with embedded proteins. S2: The plasma membrane is selectively permeable, regulating the passage of molecules across it. S3: Simple diffusion involves the movement of neutral solutes across the membrane along the concentration gradient, without energy expenditure. S4: Polar molecules require carrier proteins to facilitate their transport across the nonpolar lipid bilayer. S5: Active transport moves molecules from a region of higher concentration to lower concentration, utilizing ATP.
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