Practice What Are Enzymes? - 3.1 | Molecular Biology | IB 12 Biology
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

What Are Enzymes?

3.1 - What Are Enzymes?

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is an enzyme?

💡 Hint: Think about what helps reactions happen faster.

Question 2 Easy

Define active site.

💡 Hint: Consider where the substrate fits into the enzyme.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What role do enzymes play in biological reactions?

They slow down reactions
They speed up reactions
They require energy to function

💡 Hint: Remember how enzymes affect the speed of reactions.

Question 2

Is it true that enzymes are consumed in the reaction?

True
False

💡 Hint: Think about the definition of a catalyst.

3 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design an experiment to test the effect of temperature on enzyme activity. What controls would you include?

💡 Hint: Consider how to isolate the temperature variable while keeping other factors constant.

Challenge 2 Hard

Predict what would happen to a population of enzymes in a high-acidity environment and propose a solution to stabilize their activity.

💡 Hint: Think about how pH changes can affect protein structure.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.