Enzyme Webquest - Winston-Salem/Forsyth County Schools



Enzyme Webquest!

For this webquest, you will go to each of the websites and answer the questions that follow. Use this guide to help you through this quest!

This was not designed to be easy! It was designed to be a CHALLENGE QUEST! First one done with correct answers gets a prize (

First go to this website (copy and paste the website into the address bar):

Lew-Port’s Biology Place



1. What category of carbon compounds do enzymes fall under?

2. What is the main job of enzymes?

3. True/False Enzymes can only be used once.

4. What determines an enzymes function? How many functions does an enzyme have?

5. What is it called when extreme conditions like high temperatures and extreme pH values change the shape of an enzyme?

6. What is the difference between the reaction with an enzyme and the reaction without an enzyme?

7. Draw a picture that explains enzyme “specificness” (we call this enzyme specificity). Be sure to label the enzyme(s) and substrate(s)

8. How can an enzyme with only two active sites (the area where the substrate binds to the enzyme) make a long-chain molecule?

9. Draw a picture of an enzyme and substrate before and after adding extreme heat.

Congrats! You’re done with that site. On to the next one!

Go to this website and follow the directions (copy and paste the website into the address bar):



10. What are the two variables you will be experimenting with on this site?

11. If you click on the “Information” button, it is stated that “enzymes are organic catalysts.” What does this mean?

12. What kind of mechanism is the enzyme-substrate complex often compared to?

13. First, add the same amount of substrate to every test tube and keep the pH constant. Click the computer monitor to see the data. What is your dependent variable? In other words, what is it that you are measuring?

14. What did you get when you added the same amount of substrate to each test tube?

15. Now, add the amount of substrate laid out in front of each test tube. What happens to the reaction rate when you increase the amount of substrate?

16. Now play with the pH. What happens when you increase the pH? What happens when you decrease the pH? Does the enzyme suffer more from an acidic solution or a basic solution?

Congrats! On to the final website!

Go to this website and read the “Have a Go” information

Energy Diagrams (copy and paste the website into the address bar):



17. What is activation energy?

18. A reaction that results in a release of energy into the surroundings is considered _________________. A reaction that involves a transfer of energy from the surroundings to the reaction is considered _____________________.

19. What is an energy diagram? Does it tell you the amount of energy within a reaction system, or in the environment as a whole?

20. Use the slider to carry out the steps of a reaction. The reaction between hydrogen and chlorine (Silver and green) is exothermic. Draw the energy diagram of an exothermic reaction. Then label the reactants, products and activation energy.

Explain how you know the reaction was exothermic. In other words, explain how you know energy

was given off and not put in.

21. Click “Get endothermic reaction”. This reaction, between oxygen and nitrogen, is endothermic. Draw the energy diagram of an endothermic reaction. Label the reactants, products and activation energy.

Explain how you know the reaction was endothermic. In other words, explain how you know energy was put into the system.

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