Bio1151 Chapter 10 9
  1. Plants and other                    are the              of ecosystems.
     
  2. Photoautotrophs can convert solar energy into the             energy in food by a process called                  .

     
  3. Photosynthesis is a          process where water is             and carbon dioxide is            to           .
     
  4. In plants, photosynthesis occurs in organelles called chloroplasts, which contain                pigment molecules.



     
  5. There are two major stages: the          reactions and the           cycle (light-independent reactions).
     
    • The light reactions occur in the             , where chlorophyll pigments _ANI_10,2 absorb _ANI_10,3 light and excite some electrons.
       
    • Each excited electron is passed through two                 where the energy is used to produce        and         .

       
    • The Calvin cycle occurs in the           to synthesize          from carbon dioxide.


     
  6.       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.