課程名稱︰普通生物學乙 課程性質︰必修 課程教師︰林讚標 開課學院： 開課系所︰農化系、神經認知學程、地科學程 考試日期（年月日）︰2011.11.21 考試時限（分鐘）：110分鐘 是否需發放獎勵金：是 （如未明確表示，則不予發放） 試題 : (該次考試有兩份試卷，以下僅有林讚標老師出題部分) 另外題號後面之括弧內為答案 1. ( c, d ) Which of the description of plastoquinine is not true? a) Plastoquinone is a component of PSII b) Plastoquinone shuttles electrons from pheophytin to the cytochrome complex. c) Plastoquinone is small hydrophilic molecule and lipid soluble d) The protons transported by plastoquinone result in a large concentration of proteins in the thylakois lumen. 2. (b) The electron transport chain occurs in the a) outer membrane b) inner membrane c) outer and inner membrane d) matrix of the mitochondrion. 3. Explain what is "chemiosmotic hypothesis". ANS.--> An energetic coupling mechanism whereby energy stored in an electrochemical proton gradient (proton-motive force) is used to drive a production of ATP. 4. (d) Why are NADH and FADH2 said to have "reducing power"? a) humid b) cold and dry c) cold and humid d) hot and dry habitats. 5. (b) a) They are the reduced forms of NAD+ and FAD b) They donate electron to components of the ETC, reducing those components c) They travel between the cytosol and the mitochondria d) They have the power to reduce CO2 to glucose. 6. (c) a) When an electron is excited by a photon b) transformation of electronmagnetic energy to chemical energy c) energy on electrons is transferred to nearby pigment molecules d) transfer of energy to the elestron receptor. 7. (a) a) stroma pH8 and thylakoid lumen pH5 b) stroma pH8 and thylakoid lumen pH4 c) stroma pH5 and thylakoid lumen pH8 d) stroma pH4 and thylakoid lumen pH7 8. (b) What do carotenoid in photosynthesis? a) they turn northern forests into spectacular display of yellow and orange b) they extend the range of wavelengths that can derive photosynthesis c) they can generate gree radicals in photosynthesis d) the pigment of light-dependent readtions use CO2 to make ATP. 9. (d) Why do the absorption spectrum for chlotophyll and the action spectrum for photosynthesis coincide? a) Photosysten I and II are activated by different wavelengths of light b) Wavelength of litht that are absorbed by chlorophyll trigger the light-capturing c) Energy from wavelengths and absorbed by carotenoids is passed on to chlorophyll d) The rate of photosynthesis depends on the amount of light received. 10. (d) How are the electrons lost from photosystem II replaced? a) They come from photosystem I b) They come directly from energetic photons c) They diffus through the thylakoid membrane d) Water is split to yield two with oxygen as by-product. 11.The overall reaction of photosynthesis was expressed as A and B: A. 6 CO2 + 6 H2O + Light → C6H12O6 + 6 O2 B. 6 CO2 +12 H20 + Light → C6H12O6 + 6 O2 + 6 H2O Why B is more accurate than A? ANS.--> 6 O2 comes fron the split of the 12 H2O 12.(c)Glycolysis is regulated in response to the amount of ATP in the cell. Specifically, high levels of ATP will regulate the activity of phosphofructokinase, a key enzyme in glycolysis. How does this regulation occur? a) ATP binds to the enzyme’s active site, increasing enzyme activity. b) ATP inhibits the synthesis of new enzyme molecules. c) ATP binds to the enzyme’s regulatory site, resulting in a conformational change that inhibits enzyme activity. d) ATP activates the production of new enzyme molecules. 13.(a) Where does the citric acid cycle occur in the eukaryotes? a) in the cytosol b) in the matrix of mitochondria c) in the inner membrane of mitochondioa d) in the intermembrane space of mitochondria 14.(b) What do the light-capturing reactions of photosynthesis produce? a) G3P b) ATP and NADPH c) RuBP d) sucrose or stach --

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