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BIO NMDCAT Biological Importance of Water
nmdcat.online June 27, 2026

The movement of water from a dilute solution to a more concentrated one across a semi-permeable membrane, a process fundamental to cell physiology, is termed

A. Active transport
B. Facilitated diffusion
C. Osmosis
✓
D. Plasmolysis

📝 Explanation

Osmosis is the net passive diffusion of water across a selectively permeable membrane from a region of higher water potential (lower solute concentration) to a region of lower water potential (higher solute concentration). It does not require energy and is central to water relations in cells.

📖 Additional Information

  • Active transport
  • Facilitated diffusion
  • Osmosis
  • Plasmolysis

Osmosis is the net passive diffusion of water across a selectively permeable membrane from a region of higher water potential (lower solute concentration) to a region of lower water potential (higher solute concentration). It does not require energy and is central to water relations in cells.

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