Class 10 Zoology simulations · Life Processes

Temperature and pH affect enzymes

Change temperature and pH and watch an enzyme’s activity rise to an optimum and then fall.

Open the simulation

What to notice

Low temperature only slows (inactivates) an enzyme; high temperature destroys its shape (denaturation).

Key relation

Activity peaks at the optimum; extremes denature the protein

Try this

Find the pH where pepsin works best and compare it with trypsin.

What you can change

• Enzyme: choose Salivary amylase, Pepsin (stomach), Trypsin (small intestine)
• Temperature: 0 to 70 °C
• pH: 1 to 12

More in Life Processes

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

See all Class 10 Zoology simulations or every Physica simulation.