Exercise & Respiration. IGCSE Coordinated Science Topic 9.7 A nimal Systems. Learning Objectives. Understand why exercise changed breathing and pulse rate. Learn about the difference between aerobic and anaerobic respiration. Learn about oxygen debt. (Higher only). Success Criteria.
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IGCSE Coordinated Science
Topic 9.7 Animal Systems
glucose + oxygen carbon dioxide + water
When we exercise, we need more of these two.
This means more of this is produced. Itmust be removed.
Write out these steps under the heading ‘Exercise & Respiration’.
1. Cells need more glucose + oxygen for respiration
2. Breathing rate + Pulse rate increase in order to deliver glucose + oxygen to cells
3. High rate of respiration means lots of waste carbon dioxide is produced
4. The high breathing and pulse rate means that the carbon dioxide can be removed as quickly as possible.
What do you think each time period represents? Fill in your own blank graph.
glucose lactic acid
It gets broken down in the liver.
The blood carries the lactic acid there.
In your books, describe what will happen to your breathing rate and pulse rate as you move towards your next destination in the college.
Explain the changes.