Biological catalysts that speed reactions without being consumed. Each has a unique shape.
Active Site
Region where substrates bind. Shape determines which molecules can fit.
Specificity
Each enzyme only works with substrates matching its active site shape.
Substrate
The molecule an enzyme acts upon. Must fit the active site to react.
ES Complex
Temporary enzyme-substrate binding that enables the catalytic reaction.
Rate Factors
Concentration, temperature, pH, and collision frequency affect reaction speed.
How to Play
Your Mission
Discover the hidden enzyme cascade by experimenting with different enzyme-substrate combinations. Each enzyme transforms specific substrates into products, which may then become substrates for other enzymes.
Steps to Success
Select an enzyme from the dropdown menu
Choose a substrate shape to test
Adjust concentrations using the sliders
Observe reactions in the beaker
Track molecule populations on the graph
Complete reaction templates to verify understanding
Key Strategies
Products from one reaction can serve as substrates for another enzyme. Watch the graph to track molecule transformations. Green highlighting indicates correct reaction templates. Test all enzyme-substrate combinations systematically.
Controls Guide
Left Panel
Simulation controls: Select enzymes and substrates from dropdowns. Adjust concentrations with sliders to observe how it affects reaction rates.
Center Beaker
Visual reaction chamber: Watch molecules move and interact. Enzymes capture matching substrates and catalyze their transformation into products.
Right Panel
Data and analysis: Monitor reaction rate, track total reactions, view molecule populations over time, and test your knowledge with reaction templates.
Challenge Mode
Complete the entire reaction cascade to unlock a special surprise. Look for the rainbow-colored product that appears at the end of the chain. When this special molecule is produced, it triggers an interactive quiz to test your understanding of enzyme catalysis.