Photosynthesis

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Across
  1. 4. an electrochemical gradient across the thylakoid membrane and the inner membrane of the mitochondrion; due to concentration differences of both positive charges and hydrogen ions.
  2. 7. organelle in the cells of plants and algae, that contains chlorophyll and is the site of photosynthesis.
  3. 10. exchange of oxygen and carbon dioxide between the body and the outside air.
  4. 11. short-term energy carrier; temporarily stores energy during photosynthesis.
  5. 12. Conversion of light energy from the sun into chemical energy.
  6. 14. second stage of photosynthesis in which carbon atoms from carbon dioxide are combined, using the energy in ATP and NADPH, to make glucose.
Down
  1. 1. first stage of photosynthesis in which light energy from the sun is captured and changed into chemical energy that is stored in ATP and NADPH.
  2. 2. fluid-filled space inside a chloroplast where the second stage of photosynthesis (Calvin cycle) occurs.
  3. 3. within the chloroplast, consists of sac-like membranes, known as thylakoid membranes.
  4. 5. flattened sac of membrane inside a chloroplast where the first stage of photosynthesis (light reactions) occurs.
  5. 6. the difference in the concentrations of molecules across a membrane.
  6. 8. green pigment in a chloroplast that absorbs light energy during the light reactions of photosynthesis.
  7. 9. splitting water by light; produces the hydrogen ions and electrons used in light reactions and oxygen atoms.
  8. 13. simple sugar that all living things use to store and transport energy.