Photosynthesis A Level

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  1. 1. The final product of the Calvin cycle, which can be used to synthesize glucose and other carbohydrates.
  2. 5. The type of spectrum that shows the efficiency of different wavelengths of light in driving photosynthesis.
  3. 6. The high-energy molecule produced during the light-dependent reactions that is used to power the Calvin cycle.
  4. 8. The location where the majority of photosynthesis occurs in most plant leaves.
  5. 11. The process of electron transport in photosystem I that forms a closed loop, generating ATP but not reducing NADP+.
  6. 14. The ORGANELLE in plant cells where photosynthesis occurs.
  7. 16. During __________ photophosphorylation, electrons from water molecules are used to generate oxygen, NADPH, and ATP.
  8. 18. The specialized structures within chloroplasts where the light-dependent reactions occur.
  9. 21. During the Calvin cycle, which 3-carbon compound is initially formed when carbon dioxide is added to RuBP, and then goes through a series of chemical reactions to produce glucose?
  10. 22. The process of photosynthesis that takes place in the absence of light, consuming oxygen and releasing carbon dioxide.
  11. 23. The absorption spectrum of a photosynthetic pigment shows which wavelengths of light it can absorb, while the action spectrum shows its __________.
  12. 25. What is the name of the enzyme responsible for the regeneration of RuBP (ribulose-1,5-bisphosphate) in the Calvin cycle, thus allowing it to accept more CO2?
  13. 27. The enzyme responsible for fixing carbon dioxide during the Calvin cycle.
  14. 28. The main photosynthetic pigment, chlorophyll, primarily absorbs light in which two regions of the electromagnetic spectrum?
  15. 30. During non-cyclic photophosphorylation, electrons are transferred from photosystem II to photosystem I through an ________ transport chain.
  16. 32. The fluid-filled space within a chloroplast where the Calvin cycle of photosynthesis takes place.
  17. 33. Tiny openings on the surface of plant leaves that allow for gas exchange in photosynthesis.
  18. 35. The process in photosynthesis that generates oxygen as a byproduct.
Down
  1. 2. The mobile electron carrier that shuttles electrons from photosystem II to photosystem I in non-cyclic photophosphorylation.
  2. 3. The type of spectrum by which chlorophyll and other pigments capture light energy for photosynthesis.
  3. 4. The electron carrier molecule involved in the electron transport chain during photosynthesis.
  4. 7. The phase of the Calvin cycle where ATP and NADPH produced in the light-dependent reactions are used to reduce 3-PGA to form G3P.
  5. 9. The second stage of photosynthesis where carbon dioxide is converted into glucose.
  6. 10. In the light-dependent reactions, what is the primary electron donor molecule that gets oxidized and releases electrons to the electron transport chain?
  7. 12. The first stage of photosynthesis where light energy is converted into chemical energy.
  8. 13. During the Calvin cycle, the reduction of 3-phosphoglycerate (3-PGA) to form a carbohydrate primarily requires the input of which molecule?
  9. 15. In the process of photophosphorylation, what complex in the thylakoid membrane couples the flow of protons to the phosphorylation of ADP to ATP?
  10. 17. The gas taken in during photosynthesis and used to produce glucose.
  11. 19. In cyclic photophosphorylation, which photosystem is primarily involved in the cyclic electron flow?
  12. 20. This process in photosynthesis involves the fixation of carbon dioxide into a stable organic molecule, a critical step in the Calvin cycle.
  13. 24. This range of the electromagnetic spectrum is most effectively absorbed by chlorophyll during photosynthesis.
  14. 26. The initial acceptor molecule for carbon dioxide in the Calvin cycle.
  15. 29. Pigments other than chlorophyll, like carotenoids, play a role in broadening the absorption spectrum and capturing light in the ________ regions.
  16. 31. This pigmented molecule is found in both photosystem I and photosystem II and plays a key role in capturing and transferring light energy during photosynthesis.
  17. 34. The primary PIGMENT responsible for capturing light in photosynthesis.