Per NCERT, OSMOSIS is defined as which process?
AThe movement of water through a selectively permeable membrane from a region of higher water concentration (lower solute) to a region of lower water concentration (higher solute)
BThe breakdown of water molecules by heat
CThe movement of any solute across any boundary
DThe freezing of water in cells
Answer & Solution
Correct answer: A. The movement of water through a selectively permeable membrane from a region of higher water concentration (lower solute) to a region of lower water concentration (higher solute)
Per NCERT §2.2.1, osmosis = water movement across a selectively permeable membrane down its concentration gradient. The other options misstate it.
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