2012-2013生物化学A卷(16K) 2.doc

2012 -2013 学年第 一 学期 《生物化学A》试题（A卷） 课程代码 BB03512 考试方式 闭卷 考试时长 100 分钟 姓名 　学号 　 　教学班号　　 专业 级 班 题 号 一 二 三 四 合计 满 分 15 30 30 100 得 分 阅卷人 Write Out the Chinese Name of the Following Biochemical Terms (写出下列名词或英文简写符号的中文名称) (每空1分，共15分) 英文名称 中文名称 Isoelectric Point cytochrome oxidase energy currency APS Nucleic Acid Hybridization reduction potential lagging strand hnRNA Synonym codon pyruvate kinase isocitrate dehydrogenase feed-back inhibition The glyoxylate cycle Carnitine shuttle 二、Single Choice Questions(单项选择题)（每小题1分，共分） 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1. This functional group of is ( ). A. ketone B. aldehyde C. carboxylic acid D. ester 2. Mitochondria and chloroplasts share a number of features in common. Which of the following is NOT one of them? ( ) A. Both are found in all eukaryotic cells. B. Both are surrounded by a double membrane. C. Both contain DNA. D. Both may have been derived from symbiotic bacteria that invaded primitive eukaryotic cells. 3. Which of the following amino acids strongly absorbs UV light? ( ) A. Phe B. Tyr C. Trp D. all of the above 4. The isoelectric point of a protein is defined as ( ) the pH at which the net charge on the molecule is 0 the pH at which all groups are protonated the pH at which all groups are unprotonated the pH at which each acidic group is protonated and each basic group is unprotonated ?5. What kind of amino acids is likely to be found on the surface of a globular protein? A. aliphatic amino acids B. Aromatic amino acids C. Charged amino acids D. None of the above 6. Free rotation about the peptide bond in a protein is restricted primarily because of ( ) A. partial double-bond character of the peptide bond. B. h