Unit 10 Plant Kingdom Photosynthesis Terms

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Across
  1. 1. light __ reactions of photosynthesis that use energy from light and water to produce ATP, NADPH and oxygen that is released into the atmosphere, Occurs in Thylakoids
  2. 4. One stack of thylakoids
  3. 10. Organisms that make their own food, able to convert light energy into chemical energy
  4. 11. absorb excessive light that would damage chlorophyll
  5. 12. the small openings on the undersides of most leaves through which oxygen, water and carbon dioxide can move
  6. 14. Pigments that absorb light at different wavelengths and then pass energy onto chlorophyll a; protects chlorophyll a
  7. 17. the main energy source for all cells; required for the Dark Reactions
  8. 19. control the opening and closing of the stomata
  9. 20. Plants need light energy, carbon dioxide and this to make sugar
  10. 22. water is split in PS2, in a process called __
  11. 23. The solution that surrounds the thylakoids in a chloroplast; Calvin cycle happens here
  12. 24. Type of reaction in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin cycle
  13. 25. the process that autotrophs use to convert sunlight into food (glucose) Requires Carbon dioxide and water to produce oxygen and glucose
Down
  1. 2. Responsible for moving high energy electrons from PS2 and PS1 and uses the lost energy from the electrons to pump hydrogen ions into the thylakoid lumen/space
  2. 3. ___ pigment Chlorophyll a (main pigment in photosynthesis)
  3. 5. An electron carrier involved in photosynthesis, which provides the high-energy electrons for the fixation of carbon dioxide into sugar in the Calvin cycle.
  4. 6. A light capturing protein complex in the thylakoid membrane of a chloroplast; reduces NADP+ to NADPH.
  5. 7. A light capturing protein complex in the thylakoid membrane of a chloroplast; splits water into electrons, protons, and oxygen gas.
  6. 8. color of chlorophyll a pigments in plants that absorb light energy used to carry out photosynthesis; located in the reaction center of photosystems
  7. 9. Released to the atmosphere via diffusion when water is split in PS2
  8. 13. sac-like photosynthetic "coin" like structure where the light reactions occur
  9. 15. A waxy covering on the surface of stems and leaves that acts as an adaptation to prevent plants from dehydrating
  10. 16. organelle where photosynthesis occurs, captures sunlight and converts into chemical energy
  11. 18. describes the electrons that are passed in a thylakoid membrane
  12. 21. that is converted to ATP for energy storage