BiologyYears 12–13Respiration

Cellular respiration

Understand glycolysis, the Krebs cycle, oxidative phosphorylation and anaerobic respiration

What you'll learn

  1. 1

    Think of your body like a rechargeable battery 🔋. Cellular respiration is how your cells 'unlock' the energy stored in food to keep you going!

  2. 2

    What does cellular respiration release from food?

  3. 3

    Let's build the respiration equation! Drag the parts to make: glucose + oxygen → carbon dioxide + water + energy.

  4. 4

    Let's work through how a runner uses respiration during a 100m sprint 🏃‍♂️.

  5. 5

    What are the two waste products of cellular respiration?

  6. 6

    Explore the energy release! Adjust the slider to see how much ATP energy is produced from 1 molecule of glucose.

  7. 7

    Which part of the cell is the main site of aerobic respiration?

Practise Cellular respiration with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 16–18. Aligned to the UK National Curriculum.