Class 11 Zoology simulations · Biomolecules

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 Biomolecules

• Enzyme action and competitive inhibition
• Levels of protein structure

See all Class 11 Zoology simulations or every Physica simulation.