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Biology

Diffusion and Osmosis

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The effect of osmosis on animal and plant cells

Table on the effect of osmosis on animal and plants cells

   
  • Red blood cells placed in isotonic solution (0.85% salt solution) will STAY THE SAME
  • No osmosis takes place
  • Red blood cells placed in hypotonic solution (pure water) will BURST
  • Water moves from a high water concentration outside the cell to a low water concentration inside of the cell
Water entering a red blood cell
  • Red blood cells placed in hypertonic solution (1.7% salt solution) will SHRINK
  • Water moves from a high water concentration inside the cell to a low water concentration outside of the cell
Water leaving a red blood cell
  • Plant cells placed in isotonic solution (dilute sugar solution) will STAY THE SAME
  • No osmosis takes place
Water entering and leaving a cell
  • Plant cells placed in hypotonic solution (pure water) will become TURGID
  • Water moves from a high water concentration outside the cell to a low water concentration inside of the cell
  • The presence of the plant cell wall prevents it from bursting
Water entering a cell
  • Plant cells placed in hypertonic solution (concentrated sugar solution) will become PLASMOLYSED
  • Tissues with many plasmolysed cells become FLACCID
  • Water moves from a high water concentration inside the cell to a low water concentration outside of the cell
Water leaving a cell
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