1. Notes 6.2 Photosynthesis

2. Standards CLE 3210.3.3 Investigate the relationship between the processes of photosynthesis and cellular respiration. SPI 3210.3.3 Compare and contrast photosynthesis and cellular respiration in terms of energy transformation.

3. Find a Partner

4. Quick Review 1.Where does photosynthesis happen? 2.Where do the light reactions happen? 3.What are the reactants and products of the light reactions?

5. Where does it happen? Two Stages: –Light Cycle: –Calvin Cycle: Takes place in the thylakoid Takes place in the stroma

6. Light-Dependent Cycle Reactants: Products: H 2 O and Light energy from the environment NADP + and ADP + from the Calvin cycle. O2 gas – released through stoma ATP and NADPH – to Calvin cycle

7. Calvin Cycle Reactants: Products: CO2 – from atmosphere ATP & NADPH – from light cycle Sugar & other monomers for macromolecules such as amino acids (proteins) and fatty acids (lipids)

8. Making Connections Look in your book on page 120 and find out what “carbon fixation” is. Look up “nitrogen fixation” in your glossary. How are these two similar?

9. Stomata Stomata (plural) stoma (singular): Specialized cells that create a pore in the leaves that allow air (CO2, O2, water vapor) to come and go.

10. Diffusion in Action

11. With your partner – think/pair/share Describe why plant cells may want to close their stoma.

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