課程名稱︰普通生物學乙上 課程性質︰必修 課程教師︰陳俊宏 開課學院：醫學院 開課系所︰醫學系 考試日期（年月日）︰2009／12／03 考試時限（分鐘）：110min 是否需發放獎勵金：是 （如未明確表示，則不予發放） I. 填充：(one points for each blank) 1. Upon double fertilization, ____________________ (part of a flower) develops into a seed, and the ____________________ develops into a fruit enclosing the seed(s) in angiosperms. 2. The following mechanisms evolved in angiosperms can reduce or even prevent self-fertilization: being dioecious species, ____________________, ____________________ and ____________________. 3. Most crop plants acquire their nitrogen from soil mainly in the form of ____________________. 10.(= = I don't know what happened here...) Nodulation occurred in legume root requires specific chemical recognition between root and rhizobium.(根瘤菌) In an effective nodule(根瘤), Leghemoglobin(豆科血紅素) is formed and Rhizobium is transformed into ____________________ in where ____________________ (an enzyme) can carry out N-fixation to convert nitrogen gas into ____________________ which is incorporated into organic compounds to sustain host plants. 4. There are several substances serve as the secondary messengers in the signal transduction pathways in response to the internal or external signals: cADPR, cAMP, IP3, DAG, cGMP, ____________________ and ____________________. 5. Plant roots may absorb water from soil or lose water to soil. It means that water movement across plasma membrane is passive and the direction of movement is determined by (the driving force) ____________________. 6. Long-distance transport is from root to leaves, and the direction of phloem flow is from ____________________ to ____________________. 7. The transport protein locates on plasma membrane of companion cells or sieve tube elements and mediates the sugar loading is ____________________. 8. List the essential minerals for plant growth: C, H, O, N, K, Ca, Mg, P, __, Si, Cl, Fe, B, __, Na, __, Cu, Ni, Mo. 9. Most mineral ions present in soil are absorbed on the surface of soil particle. Plant roots are able to pump proton to soil in order to obtain mineral nutrients. The process that makes minerals available is called ____________________. 10. Among plant hormones, ____________________ is mainly synthesized in young roots' and ____________________ is mainly produced in shoot tips, and then distributed by ____________________. (the special transport process) --

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