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Unformatted text preview: BIOC 460 Spring 2010 Photosynthesis and Calvin Cycle Problem Set Reading Chapter 19 and Chapter 20.1 and 20.2 Problems Chapter 19: 1 and 5, Chapter 20: 2, 3, 6, 7 Then try these: 1. Diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea) blocks electron flow from Photosystem II to Photosystem I. What effect (if any) will it have on: Oxygen production? Photophosphorylation? Oxidative phosphorylation? Explain your answers. 2. What effect (if any) would the uncoupling molecule dinitrophenol (DNP) have on: Photophosphorylation NADPH production? Oxidative phosphorylation? Explain your answers 3. Predict the effect of increased oxygen pressure [O2] on carbon assimilation. Explain your answer. 4. Give two reasons that the Calvin cycle does not occur in the dark. ...
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- Spring '07