Chapter 8: Photosynthesis

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Across
  1. 2. Plants' principle pigment
  2. 6. One of the four main ways that cells use energy provided by ATP, to respond to chemical _________ at the cell surface
  3. 8. The key to ATP's ability to store and release energy
  4. 12. These break up each water molecule into 2 electrons, 2 hydrogen ions, and 1 oxygen atom during photosynthesis
  5. 13. Process that uses the energy of sunlight to convert water and carbon dioxide into high-energy sugars and oxygen
  6. 16. One of the three most important factors that affect photosynthesis, light _________.
  7. 17. Organisms that make their own food
  8. 20. One of the three most important factors that affect photosynthesis, the availability of _________.
  9. 22. Reactions in which no light is required to power the reaction
  10. 24. One of the four main ways that cells use energy provided by ATP, to carry out ___________.
  11. 25. Clusters of chlorophyll and proteins in thylakoids
  12. 27. Photosynthesis begins when pigments in photosystem II absorb light and transfer the energy to _______ in the pigments
  13. 30. One of the four main ways that cells use energy provided by ATP, to power ___________.
  14. 31. One of the four main ways that cells use energy provided by ATP, the __________ __ __________.
  15. 32. A compound that can accept a pair of high-energy electrons and transfer them, along with most of their energy, to another molecule
  16. 33. Energy comes in many forms, including light, heat, electricity, and can be stored in _____________.
Down
  1. 1. Saclike photosynthetic membranes contained in chloroplasts
  2. 3. Plants use the energy from these to produce complex carbohydrates such as starches, and to provide energy for the synthesis of other compounds, including proteins and lipids
  3. 4. These use energy from light to reenergize the electrons in photosystem I
  4. 5. The more common name of the light-independent reactions in photosynthesis
  5. 7. The organelles in which photosynthesis takes place
  6. 9. Without the ability to obtain and use energy, _____ would cease to exist
  7. 10. One of the most important compounds that cells use to store and release energy
  8. 11. Nearly all life on Earth depends on the ability of autotrophs to capture the energy of sunlight and store it in the molecules that make up _________.
  9. 14. A compound in which energy is stored when nicotinamide adenine dinucleotide phosphate accepts and holds 2 high-energy electrons, along with a hydrogen ion
  10. 15. Energy from the sun travels to Earth in what form?
  11. 18. Organisms that obtain food by consuming other living things
  12. 19. Reactions that require the direct involvement of light and light-absorbing pigments
  13. 21. A series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions
  14. 23. The ability to do work
  15. 26. The fluid portion of the chloroplast, outside of the thylakoids
  16. 28. One of the three most important factors that affect photosynthesis
  17. 29. A protein that allows hydrogen ions to pass through and rotates, binding ADP and a phosphate group together to produce ATP