Year 8 · Summer Second Half

Biology

3 lessons from 1 unit.

Unit B8 · lessons 3 to 5 of 5

Every cell you own is running the same reaction right now, and has not stopped since you were an embryo. This unit is about what that reaction takes in, what it gives out, what happens when the oxygen runs short, and why a brewery and a yoghurt factory are both built around it.

03Anaerobic respiration in humansProcessYou finish the sprint, you stop dead, and you go on gasping for another two minutes. The running has finished. Something else has not.Open this lesson
04Fermentation and what we use it forProcessBread, yoghurt, cheese, soy sauce, vinegar, chocolate, and every alcoholic drink there has ever been. All of them are the waste products of something respiring without oxygen, and we built a civilisation on them before we knew that.Open this lesson
05Aerobic vs anaerobicContrastTwo ways to get energy out of the same sugar molecule. One releases far more of it. The other releases it far faster. Almost everything alive uses both, and knowing which is running when is the whole point of this unit.Open this lesson

Back to all three sciences this half term The whole KS3 Biology course