課程名稱︰植物營養學 課程性質︰系必修 課程教師︰鍾仁賜 開課學院：生農學院 開課系所︰農業化學系 考試日期（年月日）︰2011.4.28 考試時限（分鐘）：120分鐘 是否需發放獎勵金：是 （如未明確表示，則不予發放） 試題 : 1.It is said "corruption is the mother of vegetation". Why? (5 points) 2.Why does "agricultural chemistry" play an important in the search for the "principle" of vegetation? (5 points) 3.Explain the following terms: (20 points) (1)active transport (2)growth (3)antiport (4)apoplast (5)aquaporins (6)allelopathy (7)determinate plants (8)electrogenic (9)proteoid roots (10)ion pump 4.Photosynthesis in higher plants is said to involve two distinct photosystems. Describe the two photosystems. (10 points) 5.According to Arnon and Stout (1939), what criteria must be met for an element to be described as essential? (10 points) 6.Crop yields have been increasing over the years because of improvements in tillage, varieties, pest control, fertilization, and so on. From a theoretical standpoint, what do you consider to be the factor that will ultimately limit further increases in plant growth? From a practical standpoint, what do you think this factor will be? (10 points) 7.Name and briefly describe the two pH stats that contribute to the maintenance of a high pH level in cytosol of plants. Which one is dominant and why? (10 points) 8.What are the physiological functions that are highly regulated by the plasmalemma H+-ATPase? (10 points) 9.What is photorespiration? Discuss the meaning and significance of photorespiration of C3 plants. (10 plants) 10.Discuss: why does nitrate uptake of plant increase the pH of the outer solution and the reverse is true for ammonium uptake? (10 points) --

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