Question
GeneralGeneralGeneral

Why do plant cells not burst in hypotonic solutions?

Verified Answer

Plant cells do not burst in hypotonic solutions because they have a rigid cell wall that prevents excessive expansion.

Key Factors

Factor Impact Explanation
Cell Wall Provides support Strong outer layer resists pressure
Turgor Pressure Balances force Internal pressure builds but is controlled
Water Entry Causes swelling Water enters but expansion is limited
Structural Strength Prevents bursting Cell wall holds the shape

Stepwise Understanding

  1. Plant cell is placed in hypotonic solution

  2. Water enters the cell through osmosis

  3. Cell starts swelling

  4. Cell wall resists further expansion

  5. Internal pressure (turgor pressure) stabilizes the cell

Important Concept

Turgor pressure is the pressure exerted by cell contents against the cell wall.

Real Insight

This pressure actually helps plants stay upright and firm, which is why well watered plants look fresh, not weak.

So instead of bursting, plant cells become turgid due to the presence of a strong cell wall.