Practice Biological Redox Reactions - 2.5.3 | Unit 9: Redox Processes | IB Grade 11: Chemistry
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

Biological Redox Reactions

2.5.3 - Biological Redox Reactions

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 the main product of cellular respiration?

💡 Hint: Think about what glucose is converted into in the presence of oxygen.

Question 2 Easy

What role do cofactors like NADH and FADH2 play in metabolism?

💡 Hint: Consider what happens in redox reactions.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is oxidized during cellular respiration?

Oxygen
Water
Glucose

💡 Hint: Think about what happens to glucose during this process.

Question 2

True or False: NADH is the oxidized form of the coenzyme.

True
False

💡 Hint: Focus on the electron transfer states.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Calculate the change in Gibbs Free Energy (ΔG) for a reaction involving the oxidation of glucose, given the standard cell potential (E°) is +1.1 V and two moles of electrons are involved.

💡 Hint: Remember to substitute n with the number of moles of electrons transferred.

Challenge 2 Hard

Explain the flow of electrons in cellular respiration is coupled with ATP synthesis. How does this relate to the proton gradient?

💡 Hint: Consider how the electron transport chain is structured and its purpose.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.