2_1_08_Photosynthesis questions

2_1_08_Photosynthesis questions - purify air. 8. How did...

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Lecture 6: I am what I eat: Photosynthesis Note, do not memorize any chemical structures. Know van Helmont, Malthus, Priestley, Boussingault, Kamen and Calvin. Questions you should be able to answer after today’s lecture. 1. What is “the law of Malthus”? 2. Describe four approaches to ensure an adequate food supply. What are the advantages and disadvantages of each? 3. What is the Bt toxin? 4. What are the advantages and disadvantages of labeling genetically-engineered food? 5. What is the difference between an autotroph and a heterotroph? 6. What did van Helmont conclude from his experiments with watering a tree? Was his conclusion right? Partly right? Wrong? 7. Describe Joseph Priestley’s experiments in which he discovered that plants can
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Unformatted text preview: purify air. 8. How did Jean Boussingault prove that plants do not get their carbon from humus? 9. How do we know that the oxygen evolved during photosynthesis comes from water? 10. Define reduction. Define oxidation. Does the oxidized molecule or the reduced molecule of a couplet have more chemical energy? 11. How do you use an action spectrum and absorption spectra to identify the pigment involved in a photochemical response? 12. Briefly describe the light reactions of photosynthesis. 13. How did Melvin Calvin determine the path of carbon in photosynthesis? 14. What is artificial photosynthesis?...
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This note was uploaded on 02/04/2008 for the course BIO G 101 taught by Professor Gilbert,c. during the Spring '07 term at Cornell.

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