Photosynthesis Review Worksheet

Name_____________________________________________ Date_____________________ Period______ Photosynthesis Review Worksheet Part A Match the terms below with the correct description Chlorophyll Chloroplast Electromagnetic spectrum Electron transport chain Grana Light-dependant reactions Light-independent reactions Photon Photosynthesis Photosystem Stroma Thylakoid a. __________________ packet of solar energy b. __________________energy-capturing portion of photosynthesis that takes place in thylakoid membranes of chloroplasts and cannot proceed without solar energy, it produces ATP and NADPH c. __________________green pigment that absorbs solar energy and is important in photosynthesis d. __________________ large, central compartment in a chloroplast that is fluid filled and contains enzymes used in photosynthesis e. __________________ membrane-bounded organelle with chlorophyll – containing membranous thylakoids; where photosynthesis takes place f. __________________Photosynthetic unit where solar energy is absorbed and high-energy electrons are generated; contains a pigment complex and an electron acceptor g. __________________Passage of electrons along a series of carrier molecules form a higher to a lower energy level; the energy released is used for the synthesis of ATP. h. __________________Process usually occurring within chloroplasts whereby chlorophyll traps solar energy and carbon dioxide is reduced to a carbohydrate. i. __________________ Series of photosynthetic reactions in which carbon dioxide is fixed and reduced in the chloroplast. j. __________________Synthesis portion of photosynthesis that takes place in the stroma of chloroplasts and does not directly require solar energy; it uses the products of the light dependant reactions to reduce carbon dioxide to a carbohydrate Name_____________________________________________ Date_____________________ Period______ 1) What is the overall equation for photosynthesis? 6 CO2 + 6 H2O  glucose (C6H12O6) + 6 O2 It is the reverse of the overall reaction for cellular respiration. 2) From where does the energy for photosynthesis come? ________________________________________ (What is the catalyst?) sunlight 3) What plant pigments are involved in photosynthesis? List all that you can think of and the colors of light they reflect. a) Explain why chlorophyll appears green to us in terms of what happens to different wavelengths of light that strike a chlorophyll molecule. 4) In which plant cell organelle, does photosynthesis take place? __________________________________ in the chloroplasts 5) What 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) 6) What happens to water molecules in the light reactions? 7) What photosynthesis waste product is formed in the light reactions? _____________________________ oxygen gas (O2) 8) What two products of the light reactions are used up in the Calvin cycle? a) b) ATP and NADPH Name_____________________________________________ Date_____________________ Period______ 9) What 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). 10) 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. 11) Label the diagram below to summarize the two stages of photosynthesis. Use the word bank below the diagram to fill in the blanks. 2. 3. 1. 4. 7. NADP+ 8. 11. (name of stage) 6. (name of stage) 5.. 9. 12. 10. 13. 14. Word Bank: thylakoids granum stroma light reactions Calvin cycle light H2 O glucose CO2 NADPH ATP NADP+ O2 ADP + P _