Biology Chapter 7

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Across
  1. 1. the material within a chloroplast that surrounds the thylakoids.
  2. 3. a flattened, membrane-bound sac inside a chloroplast where the light-dependent phase of photosynthesis takes place.
  3. 6. the process whereby plants, algae, and some bacteria form simple sugars from carbon dioxide and water in the presence of light and chlorophyll.
  4. 7. the first phase of cellular respiration, which glucose is broken down into pyruvate.
  5. 9. respiration the process by which cells break down glucose or other nutrients to produce usable energy.
  6. 10. acid cycle the second phase of aerobic cellular respiration in which pyruvate reacts with enzymes to produce acetyl CoA carbon dioxide, hydrogen ions, ATP, and electrons; called the Krebs cycle.
  7. 11. phase the portion of photosynthesis that does not require light energy in order to proceed. But the light-independent phase does require the products of the light-dependent phase; therefore, neither phase occurs during darkness. AKA Clavin cycle.
  8. 12. phase the portion of photosynthesis that requires light energy.
Down
  1. 2. process any chemical process that does not require oxygen.
  2. 4. the anaerobic breakdown of sugars to pyruvate and then to either lactic acid or carbon dioxide.
  3. 5. the green pigment of plant cells that is necessary for photosynthesis.
  4. 8. cycle The portion of photosynthesis that uses energy captured during the light-dependent phase to convert carbon dioxide and water into sugars; also known as the light-independent phase.