1. B5f2 Excretion

2. Success Criteria State waste products (Grade E)
Explain how ADH controls urine production (Grade A)
Explain why carbon dioxide must be removed (Grade C)

3. Starter
Label kidney and nephron diagrams in pairs

4. ADH Comprehension activity Read the paragraph on Osmoregulation
Draw round a person in your group on sugar paper
Label on the body how Osmoregulation works

5. ADH: Negative Feedback Diagram

6. ADH Urine production is controlled by ADH
Anti diuretic hormone
Released by pituitary gland
Controlled by negative feedback
ADH increases permeability of kidney tubules so more water is reabsorbed back in to the blood

7. Dialysis
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8. PPQ

9. PPQ

10. Answers

11. Carbon Dioxide
CO2 is produced by respiration and removed from the body by the lungs
High levels of CO2 must be removed from the body as they effect the pH of the body
HIGHER:
High levels of CO2 are detected by the brain and breathing rate increases

12. Activity
Prove exhaled breath contains CO2

13. Homework
Check Show my Homework for B5 Homework - 6

14. Plenary
Complete Kidney question sheet on paper