Photosynthesis Worksheet - Loudoun County Public Schools



Photosynthesis Review WorksheetWhat is the overall equation for photosynthesis?6 CO2 + 6 H2O glucose (C6H12O6) + 6 O2It is the reverse of the overall reaction for cellular respiration.From where does the energy for photosynthesis come? ________________________________________(What is the catalyst?) sunlightWhat plant pigments are involved in photosynthesis? List all that you can think of and the colors of light they reflect. Explain why chlorophyll appears green to us in terms of what happens to different wavelengths of light that strike a chlorophyll molecule.In which plant cell organelle, does photosynthesis take place? __________________________________in the chloroplastsWhat are the two stages of photosynthesis? List all the names that you can think of. Which part of the chloroplast does each stage occur? a)b)What happens to water molecules in the light reactions? What photosynthesis waste product is formed in the light reactions? _____________________________oxygen gas (O2)What two products of the light reactions are used up in the Calvin cycle?a)b)ATP and NADPHWhat happens to carbon dioxide molecules in the Calvin cycle reactions? What is the name of the enzyme that helps with the first step of the cycle? In the Calvin cycle, carbon dioxide molecules (CO2) are combined with each other and with the electrons and H’s from NADPH to form glucose (C6H12O6).Which carbon compounds are formed over the course of the Calvin cycle? In what form of sugar to cells store carbohydrates? (Hint: it is a product made AFTER the calvin cycle)It is stored as starch.Label the diagram below to summarize the two stages of photosynthesis. Use the word bank below the diagram to fill in the blanks.-53340666751. 2. 3. 5.. 6. (name of stage)11. (name of stage)7. NADP+8. 9.10. 13. 14. 4. 12. 001. 2. 3. 5.. 6. (name of stage)11. (name of stage)7. NADP+8. 9.10. 13. 14. 4. 12. 5763260393704. _____004. _____1178560571512. _______0012. _______-19621519875500Word Bank:thylakoidsCalvin cycleCO2 NADP+granumlightNADPHO2stromaH2OATPADP + Plight reactions glucose ................
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