Class 10 Zoology simulations · Life Processes

Limiting factors of photosynthesis

Count oxygen bubbles from an aquatic plant (like Hydrilla) as you change light, CO₂ and temperature.

Open the simulation

What to notice

Raising a factor that is not limiting changes nothing — the rate follows whichever factor is lowest.

Key relation

Blackman: the rate is set by the factor in shortest supply

Try this

At bright light, increase CO₂ from 0.03% to 0.05%. Then try at dim light.

What you can change

• Light intensity: 0 to 100 %
• CO₂ concentration: 0.01 to 0.08 %
• Temperature: 5 to 45 °C

More in Life Processes

• Mechanism of breathing (bell-jar model)
• The cardiac cycle
• Double circulation
• Temperature and pH affect enzymes
• Nephron: filtration and reabsorption
• ATP balance sheet of respiration
• Stomata: guard cells at work

See all Class 10 Zoology simulations or every Physica simulation.