[試題] 96上 鍾仁賜 植物營養學 期末考

[whaleswin16 (快攻才是王道)]

課程名稱︰植物營養學
課程性質︰大三系定必修
課程教師︰鍾仁賜 教授
開課學院：生物資源暨農學院
開課系所︰農業化學系
考試日期（年月日）︰2008年01月17日
考試時限（分鐘）：110 mins
是否需發放獎勵金：YES!!
（如未明確表示，則不予發放）

試題 :

1. What is the role of electron transport in oxygen-evolving photosynthesis?
   Name the final electron donor and final electron acceptor in photosynthsis.
                                                                   ( 5 points)

2. What is photorespiration? Discuss the meaning and significance of photo-
   respiration of C3 plants.
                                                                   (10 points)

3. If the level of atmospheric CO2 was to double, how would the following be
   affected? Explain your answer.
                                                                   (10 points)
 (1) Rate of oxaloacetate synthesis in C4 plants.
 (2) Rate of 3-phosphoglycerate synthesis in C3 plants.
 (3) Rate of photorespiration in C3 plants.
 (4) Yield of rice in Taiwan.

4. Describe the pressure-flow model of translocation in the phloem. Does water
   move down its water potential gradient in this model?
                                                                   ( 5 points)

5. What are meant by "secondary product" and "primary product"?
                                                                   ( 5 points)

6. Discuss the strategies of iron uptake of plants under iron deficient condi-
   tions.
                                                                   (10 points)

7. Describe root presure, indicate when it might occur and how to know the
   existence of root presure.
                                                                   (10 points)

8. What is meant by the term "active transport"? What is the difference be-
   tween "primary" and "secondary" active transport?
                                                                   ( 5 points)

9. Why do dicotyledenous plants have higher boron and calcium requirement
   than monocots?
                                                                   ( 5 points)

10.Classify the plant mineral elements according to their phloem mobility
   into low and high.
                                                                   ( 5 points)

11.Upland plants "wilt" and "die" after flooding for one or two days. Discuss
   the reason(s) for "wilting" and "death".
                                                                   (10 points)

12.What are the factors affecting nitrate reductase activity?
                                                                   (10 points)

13.By what mechanisms do the plants maintain a high pH level in the range of
   7.3~7.6 in cytosol?
                                                                   ( 5 points)

14.In which organ is sulfate mainly reduced? What form of sulfur can be cycled
   via phloem in order to cover root demand? What compound is the first stable
   product in which sulfur is present in a reduced organically bound form?
                                                                   ( 5 points)



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