Across
- 1. The process by which cells break down glucose or other nutrients to produce usable energy.
- 5. Material within a chloroplast that surrounds the thylakoids.
- 8. The process whereby plants, algae, and some bacteria form simple sugars from carbon dioxide and water in the presence of light and chlorophyll.
- 11. The portion of photosynthesis that uses energy captured during the lightdependent phase to convert carbon dioxide and water into sugars; also known as the light-independent phase.
- 13. This portion of photosynthesis that does not require light energy in order to proceed. The lightindependent phase, does, however, require the products of the lightdependent phase, meaning that neither phase occurs during darkness.
- 14. Describes any chemical process that does not require oxygen.
Down
- 2. A series of compounds that transfer electrons from electron donor substances to electron acceptors. These chains are an important part of both photosynthesis and cellular respiration.
- 3. This portion of photosynthesis that requires light energy.
- 4. The anaerobic breakdown of sugars to pyruvate and then to either lactic acid or carbon dioxide and alcohol.
- 6. The second phase of aerobic cellular respiration in which pyruvate reacts with enzymes to produce acetyl CoA, carbon dioxide, hydrogen ions, ATP, and electrons; also called the Krebs cycle.
- 7. A flattened, membranebound sac inside a chloroplast where the lightdependent phase of photosynthesis takes place.
- 9. The first phase of cellular respiration, in which glucose is broken down into pyruvate.
- 10. Describes any chemical process that requires oxygen.
- 12. The green pigment of plant cells that is necessary for photosynthesis.