一、红外光谱的基团频率 group frequency in IR 二、分子结构与吸收峰 molecular structure and absorption peaks 三、影响峰位移的因素 factors influenced peak shift 四、不饱和度 degree of unsaturation

一、谱图中化合物的结构信息 structure information of compound in spectrograph 二、简化谱图的方法 methods of simpling spectrograph 三、谱图解析 spectrum unscrambling 四、谱图联合解析 deduce the structures from NMR spectrum and IR spectrum

Section I: Structure and Vocabulary In each question, decide which of the four choices given will most suitably complete the sentence if inserted at the place marked. Put your choice in the brackets on the left. (15 points)

1. The problems to be solved A. Incentive B. Coordination C. Structure Imbalance

The primary purpose of a buffer is to control the pH of the solu￾tion. Buffers can also play secondary roles in a system, such as controlling ionic strength or solvating species, perhaps even affect￾ing protein or nucleic acid structure or activity. Buffers are used to stabilize nucleic acids, nucleic acid–protein complexes, proteins

Your answer should describe what each item is and how it functions in the cell. Diagrams, structure and sequence information should be included in your answer, as necessary. 1. Yeast artificial chromosome 2. RNA interference 3. Proteomics

Although DNA replication, repair, homologous recombination occur with high fidelity to ensure the genome identity between generations, there are genetic processes that rearrange DNA sequences and thus lead to a more dynamic genome structure Two classes of genetic recombination for DNA rearrangement: • Conservative site-specific recombination (CSSR): recombination between two defined sequence elements • Transpositional recombination (Transposition): recombination between specific sequences and nonspecific DNA sites

STRUCTURE AND NOMENCLATURE OF PHENOLS Phenol: Compounds that have a hydroxyl group directly attached to a benzene ring For example:

10.1 结构(Structure) 10.2 位域(Bit_Fields) 10.3 联合(Unions) 10.4 枚举(Enumerations)

Structure Upper Respiratory Tract Lower Respiratory Tract Terminal Respiratory Unite (anatomy ofthe Acinus) Circulation of the Lung