1. Fluid Transport (9.2) Part 1
Pre AP Biology
Fluid Transport (9.2)
Part 1

2. Cellular Level Transport - Roots

3. Cellular Level Transport - Leaves

4. Tissue Level Transport - Xylem

5. Tissue Level Transport - Phloem

6. Organismal Level Transport

7. Transport at the Cellular level

8. Active Transport by Proton Pumps

9. Water balance = Osmoregulation

10. Water Potential ψ Look at the water movement Hypo  Hyper

11. Water Potential ψ Water movement is equal in both directions at isotonic

12. Water Potential ψ Look at the water movement when positive pressure is added

13. Water Potential ψ Look at the water movement when negative pressure is applied

14. Water balance = Osmoregulation

15. Tonoplast (Water reservoir)

16. Source vs. Sink

17. Fluid Transport (9.2) Part 2
Pre AP Biology
Fluid Transport (9.2)
Part 2

18. Transpiration

19. Cohesion

20. Cohesion Tension Principle Water flows from high potential to low potential… look at the numbers

21. Guard Cell operation

22. Guard Cells under the microscope Left – Turgid cells – open Right – Flaccid cells - closed

23. Desert Plants?

24. Pressure – Flow Hypothesis Sugar Water down through phloem