photosynthesis

3. membrane-bound compartments inside chloroplasts and cyanobacteria
4. the greater concentration of protons on one side of the membrane and a lower concentration of protons on the opposite side
6. a plastid that contains chlorophyll and in which photosynthesis takes place
7. a series of protein complexes and other molecules which transfer electrons from electron donors to electron acceptors
8. the initial energy that starts the cycle of photosynthesis
9. a pigment present in all green plants and a few other organisms
10. a type of sugar and the primary source of energy for living organisms
11. the process by which plants fix atmospheric carbon to form organic compounds

1. functional and structural units of protein complexes involved in photosynthesis
2. certain photochemical reactions involved in photosynthesis, the main process by which plants acquire energy
5. reactant that provides the hydrogen atoms needed to create glucose
6. the cycle of enzyme-catalyzed dark reactions of photosynthesis