1. Photosynthesis How the process of getting energy from the sun is organized and WHY it is essential!

2. Where are we? Functional of the plant: Of the leaf: Of the mesophyll cell: Of the chloroplast:

3. Overview

4. Energy from light Wavelength Absorption Reflection

5. Light Dependent Reactions What is happening here? What part of the chloroplast are we in?

6. Electron Transport Chain Photosystem II: –Split water –Give off O2 gas –Chlorophyll ’ s Electrons released to the ETC to make ATP –Water replenishes electrons Photosystem I: –Form NADPH –Electrons from P II replace chlorophyll ’ s electrons

7. Why does an electron transport chain produce ATP?

8. So where are we?

9. Light Independent Reactions (Calvin Cycle) Where does this happen? What is happening here?

10. Calvin Cycle CO 2 is reduced by the H ’ s from NADPH ATP from light reactions is necessary for this to work. Enzyme “ rubisco ” helps add H ’ s Forms a 3 carbon sugar “ G3P ” Calvin cycle must happen 2X to make a glucose

11. Why these two parts are dependent upon eachother

12. Photosynthesis and Respiration Make a Venn Diagram comparing photosynthesis and aerobic cellular respiration. Remember to include similarities and not just differences!

13. Adaptations! Photorespiration: when it is really hot and dry and plants close their stomata to keep in water, they accidentially use O 2 instead of CO 2 in the calvin cycle. Why is this bad?

14. Who lives in hot, dry areas? Pineapples – C4 plants Cactus –CAM plants

15. Adaptations Temporal Structural Why are organic acids necessary?