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一、名词解释(应该是5个,但是记不清是哪5个了) Rj8%% G-pt
1.chaperon 2.motif 3.allosteric enzyme 4.ribozyme 5.gluconeogenesis 6.sernicon servativereplication A4K.,bZ
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二、选择题(很多题记不太清楚了,细节问题请包容) Cs'LrUB?=U
1.Which of the followingstatements concerning protein domains is true? wp[Ug2;G
A.they are examples ofstructural motifs f:T?oR>2
B.large polypeptide may beorganized into struoturally close but functionally independent units
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C.the consist of separatepoly peptide chains(subunits) J=4>zQLW
D.they have been found onlyin prokaryotic proteins Q?{%c[s
2.Prion disease aregenerally believed to a associated with 1<@SMcj>
A.infection by a RNA vins B.infection by DNA C.infection by protein D.infection by mRNA E8Dh;j
3.The secondary structureof transfer RNA is ; *
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A.described as double helix B.described as reversed “L” C.described as cloverleaf D.present only ineukaryotic cells 39pG-otJ
4.In competitive inhibiyion \bA Yic
A.Km not change,Vmax not change B.Km rise, Vmaxnot change C.Km not change,Vmax rise D.Km rise, Vmaxrise
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5.The part og the RNApolymerase noloenzyme that initiates binding to DNA is called the gL; Kie6Z
A.sigma factor B.intron C.ribosomal RNA D.core enzyme 2iAC_"n
6.Sunlight can damage DNAby 7*/{m K)
A.making apyrimidinic sites B.causing spontaneousdeamination of bases @NHh-&;w
C.forming pyrimidinedimmers D.alkylating DNA D28`?B9(
7.Which is therate-limiting enzyme, inregulation of the pentose phosphate pathway? V7ph^^sC}
A.hexokinase B.6-phosphofructokinace-1 C.Clucose-6-phosphatedehydrogenase D.pyrurate dehydrogenase a QH6akH
8.Transcription is theprocess in which azcPeAe
A.protein is synthesized from DNA B.DNA is replicated +Y\:Q<eMFg
C.RNA is synthesized from protein D.ENA is synthesized fromDNA P T"}2sR)
9.Which of the following isa sis-acting element? dWqn7+:
A.RNA polymerase B.Enhancer C.transcriptionfactor I D.structural gene #cbgp;,M{I
10.The protein that canbind to RNA and prevent the trascription is called kc,"w\ ai
A.inducer B.repressor protein C.cis-acting element D.positive regulatoryproteins L'e_?`!:
11.蛋白质吸收紫外光的大小取决于 %+7]/_JO&