ujian 1 skema

November 2, 2014  |  By  | 


QB2054 SULIT 2 / 15 1. What is the common name for  -D-glucopyranosyl (1  4)  -D-glucopyranose? (Apakah nama biasa untuk  -D-glukopiranosil (1,4)  -D-glukopiranosa?) A. Sucrose B. Lactose C. Maltose D. Cellobiose 2. In the tripeptide, Cys-Tyr-Arg, which amino acid is with the free amino end? (Dalam tripeptida, Cys-Tyr-Arg, asid amino yang manakah mempunyai hujung amino bebas?) A. Arg B. Cys C. Tyr D. There is no free amino end 3. What type of lipid is shown by the figure above? (Apakah jenis lipid yang ditunjukkan oleh rajah di atas?) A. A wax ester B. A triglyceride C. An isoprenoid D. An unsaturated fatty acid 4. Which of the following is the major difference between  -D-glucose and  -D-fructose? (Manakah antara berikut adalah perbezaan utama antara  -D-glukosa dan  -D- fruktosa?) A.  -D-glucose is an aldohexose, while  -D-fructose is a ketohexose B.  -D-glucose contains six carbons, while  -D-fructose contains five carbons C. The -OH functional group on carbon 5 of  -D-glucose is written to the right of the carbon chain, while that in  -D-fructose is written to the left D. The -OH functional group on the anomeric carbon in  -D-glucose is written up from the ring, while that for  -D-fructose is written down from the ring