Key Terms 7

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Across
  1. 1. semifluid matrix in chloroplasts.
  2. 4. metabolic pathway through which organisms can harness the energy of light to build organic molecules from inorganic raw materials.
  3. 5. groups of hundreds of pigments and other molecules that work as a unit to begin reactions of photosynthesis.
  4. 6. packets where electromagnetic energy of light is organized.
  5. 9. reactions where electrons pass from one molecule of the electron transfer chain to the next.
  6. 12. process by which any molecule becomes broken down by light energy.
  7. 13. organism that makes sugars from CO₂ and H₂O, using the energy of sunlight.
  8. 14. an organelle that specializes in photosynthesis that takes place in plants and many protists.
  9. 15. stacks of disks that are connected by channels in the thylakoid membrane, inside the chloroplasts.
Down
  1. 2. enzyme that fixes carbon by attaching CO₂ to five carbon RuBP, or ribulose biphosphate.
  2. 3. any light-driven reaction that attaches phosphate to a molecule.
  3. 7. the distance between the crests of two successive waves of light (measured in nm)
  4. 8. visible light is part of a spectrum of electromagnetic energy radiating from the sun, it goes from 400nm to 700nm
  5. 10. the most common photosynthetic pigment in plants, photosynthetic protists, and cyanobacteria.
  6. 11. organic molecule that selectively absorbs light of specific wavelengths.