BIOWEB
nverdae@nvcc.edu
Emma Erdahl, Associate Professor of Biology
Northern Virginia Community College
Revised 8/23/00
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12-14. Match the basic processes of photosynthesis listed below with
questions 12 - 14. 12. reduction of CO2 to glucose ___b____ In the light independent reactions, the light energy trapped in the light dependent reactions (which is now chemical energy in the form of ATP and NADPH + H+), is used to reduce CO2 to glucose. This occurs in the stroma of the chloroplast. 13. light-energized electrons ___a____
The energized electrons are the electrons in the chlorophyll molecule. The energy of
these electrons provide the energy to indirectly build ATP and reduce NADP. How are these
molecules used in the second stage of photosynthesis - the light independent
reactions? If you can't answer this question, look at question #12 above. 14. splitting of water ___a____ Light energy in the light dependent reactions is also used to split water into H ions, electrons, and oxygen gas. Thus, the oxygen gas given off in photosynthesis comes from water. |
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