subject
Chemistry, 15.12.2021 22:30 yasmin599

At sports day Karen and Elizabeth are chosen by their tutor group to run the 400m relay race. The students
decided that Elizabeth would run better than Karen, who is
a smoker.
Your Assignment:
1) Describe what happens to their circulatory system and breathing
system during and after the race.
2) Explain why each change happens
3) Why is Elizabeth likely to be a better runner than Karen? (think
about the lungs)
Key Words
Heart Lungs Alveoli Artery Capillaries Veins
Oxygen Carbon Dioxide Energy Water Sugar (glucose)
Diffusion Red blood cells Haemoglobin

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Answers: 2

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At sports day Karen and Elizabeth are chosen by their tutor group to run the 400m relay race. The...

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