Practice Enzymes (3) - Molecular Biology - IB 12 Biology
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Enzymes

Practice - Enzymes

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the function of an enzyme?

💡 Hint: Think about what happens when we cook food.

Question 2 Easy

Where do substrates bind on an enzyme?

💡 Hint: Consider the lock and key analogy.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the role of an enzyme?

Increase activation energy
Decrease activation energy
No effect on activation energy

💡 Hint: Think about what makes a reaction faster.

Question 2

True or False: Enzymes are consumed in reactions.

True
False

💡 Hint: Consider whether an enzyme could run out after a job.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A scientist is studying an enzyme that works optimally at pH 7.5 and at high temperatures. They find that increasing the temperature from 37°C to 70°C significantly decreases enzyme activity. Explain why this occurs.

💡 Hint: Think about how cooking alters the structure of proteins.

Challenge 2 Hard

In an experiment, a researcher doubled the concentration of an enzyme in a reaction mixture. Describe how the rate of the reaction would change if the substrate concentration remained constant, and explain why.

💡 Hint: Visualize a pizza shop where more chefs can make pizzas faster.

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Reference links

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