1. Aim: How are plants adapted to perform photosynthesis?

2. 1st lets look at us. How are we adapted for Heterotrophic nutrition?

3. Where does photosynthesis happen?
Plants  Leaf  Cell  Chloroplast

4. Where in the leaf does photosynthesis happen?
Cuticle
Keeps in moisture
Palisade
Photosynthetic cells
Absorb light
Spongy layer
Photosynthetic cells
Allow gas passage

5. How are materials transported in plants?

6. How do H2O and nutrients get into the leaf?

7. Water and nutrients enter the plant though…
The ROOTS

8. TRANSPORTS WATER TO LEAF:
Xylem
Root pressure, capillary action (cohesion), transpiration
Transpiration- evaporation of water from leaves

9. How are sugars (nutrients) transported from Leaves (source) to the roots (sink)?
Phloem

10. What sort of materials are transported by the phloem?
Sugars (sucrose)
minerals
Amino acids
Hormones

11. How does CO2 get inside the leaf?
OPENINGS Called STOMATA

12. How are stomata opened and closed?
Guard Cells

13. Should the stomata always be open?
WATER
VAPOR

14. What happens if they are always open?
IT WILTS

15. When should the guard cells open the stomata
When should the guard cells open the stomata? When should they close them?

16. Humid day O2
CO2
Dry Sunny day
OPEN
CLOSED

17. The stomata maintain _______ homeostasis.
WATER

18. The process by which excess water leaves a plant through the stomata is known as
Locomotion (3) hydrolysis
Photosynthesis (4) transpiration