Q:

What does “osmosis” refer to

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What does “osmosis” refer to?


  1. the constant random motion of ions and molecules.
  2. the movement of ions and molecules from regions of high concentration to regions of low concentration.
  3. the movement of water molecules through a semi-permeable membrane.
  4. the movement of water molecules through a semi-permeable membrane from the side with higher water concentration to the side with lower water concentration.

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D: the definition must include water molecules; crossing a SP membrane;

a correct direction of movement.

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