Name _______________________________ Student ID __________________Photosynthesis Worksheet – Lab Exercise 7Chapter 7 Biology 11. Explain what the significance of W.T. Engelmann’s experiment and how does this relate to the absorption spectra of chlorophyll 2. Label the following: thylakoid membrane, stroma, light independent reactions, light dependent reactions. Draw arrows where water and carbon dioxide enter and where oxygen and sugars exit. 13. The initial electron donor is _______________ and the final electron acceptor is ______________. The final electron acceptor is _________________ (oxidized/reduced). The final electron acceptor is used to make ____________. 4. Draw a schematic of the cyclic vs. noncyclic transfer of electrons. What is the benefit of the cyclic pathway?5. Draw the complete pathway of the light-independent reactions. Try not to use your book. Indicate where the investment of ATP, CO2, and NADPH come into the cycle. What is the enzyme that “fixes” carbon? 26. Is oxygen a competitor for Rubisco __________________ Yes/No7. Did light independent reactions evolve when O2 concentration on earth was low? _____________Yes/No8. What are several ways plants deal with photorespiration? (Hint: C4 and CAM plants)9. What are the pastures of the seas? Discuss in a group the aquatic food web. Howdoes industrial wastes, raw sewage, and fertilizer from crop land effect the ocean environment. Be specific and scientific in your answer. Will this affect the pastures of the seas?10. How do the pastures of the seas affect global warming? How do they affect the CO2 level in the atmosphere?
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