Bio1151b Chapter 10 Photosynthesis
  1. Plants and other                  are the            of ecosystems and can convert solar energy into the           energy in food by a process called                 .
  2. Heterotrophs are            (including decomposers), in the ecosystem, and obtain their energy from other organisms.
  3. Photosynthesis is a        process where water is           and carbon dioxide is          to          .
  4. In plants, photosynthesis occurs in organelles called               , which contain its own ribosomes and      .
  5. There are two major stages: the light reactions and the Calvin cycle (light-independent reactions).
    • The light reactions occur in the        , where pigment molecules located in a photosystem absorb light and their electrons reach an          state.
    • Each excited electron is passed through an           transport chain (ETC) and another photosystem, where the energy is used to produce      and reduce NADP+ to        .
    • The Calvin cycle occurs in the         to synthesize        from carbon dioxide.
  6. C4 plants are adapted to hot, dry climates by incorporating CO2 into       -carbon as the substrate in the Calvin cycle.
  7. The production of          carbon compounds from            CO2 is called         fixation.