Class 10 Zoology simulations · Life Processes

Stomata: guard cells at work

Change the turgor of the guard cells and watch the stomatal pore open and close.

Open the simulation

What to notice

The unevenly thickened walls (thick inner wall, thin outer wall) and radially arranged cellulose microfibrils of guard cells make them bow apart when they swell with water.

Key relation

Turgid guard cells → pore opens ; flaccid → pore closes

Try this

Compare the bean-shaped dicot guard cells with the dumb-bell shaped grass guard cells.

What you can change

• Guard cells: choose Bean-shaped (dicot), Dumb-bell shaped (grasses)
• Guard-cell turgor: 0 to 100 %

More in Life Processes

• Mechanism of breathing (bell-jar model)
• The cardiac cycle
• Double circulation
• Temperature and pH affect enzymes
• Limiting factors of photosynthesis
• Nephron: filtration and reabsorption
• ATP balance sheet of respiration

See all Class 10 Zoology simulations or every Physica simulation.