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¡° 2008³âµµ 2Çб⠻ýÈ­ÇÐ2 ±â¸»°í»ç ½ÃÇè¹®Á¦ ¡±
Write the best answer to each question. (5 points)
(1) (            ) is a readily mobilized storage form of glucose. It is a very large, branched polymer of glucose residues that can be broken down to yield glucose molecules when energy is needed.  
(2) Like the citric acid cycle, (              ) can continue only if NAD+ and FAD are regenerated. Hence, the rate of fatty acid degradation also is coupled to the need for ATP.  Malonyl CoA, the precursor for fatty acid synthesis, inhibits fatty acid degradation by inhibiting the formation of acyl carnitine acyltransferase I, thus preventing the translocation of fatty acids into mitochondria.
(3) (                 ), a 20:4 fatty acid derived from linoleate, is the major precursor of several classes of signal molecule: prostaglandins, prostacyclins, thromboxanes, and leukotrienes.
(4) Fatty acid synthesis starts with the carboxylation of acetyl CoA to malonyl CoA. This irreversible reaction is the committed step in fatty acid synthesis. The synthesis of malonyl CoA is catalyzed by (                   ), which contains a biotin prosthetic group.
(5) If ubiquitin is the mark of death, what is the executioner? A large protease complex called (           ) digests the ubiquitinated proteins. This ATP-driven multisubunit protease spares ubiquitin, which is then recycled.    

¾Æ·¡¸¦ ÀÚ¼¼ÇÏ°Ô ¼³¸íÇϽÿÀ. (15Á¡)
(6) Palmitate 1ºÐÀÚ°¡ ¿ÏÀü »êÈ­µÇ¸é ¸î ºÐÀÚÀÇ ATP°¡ »ý¼ºµÇ´ÂÁö ¼³¸íÇϽÿÀ.
(7) Unsaturated and odd-chain fatty acid(ºÒÆ÷È­ Ȧ¼öź¼ÒÀÇ Áö¹æ»ê)ÀÇ »êÈ­¿¡´Â ¾î¶² ƯÁ¤ÀÇ È¿¼Ò°¡ ÀÛ¿ëÇÏ´ÂÁö ¼³¸íÇÏ¿© º¸½Ã¿À.
(8) Urea cycleÀÇ »ýü ³»ÀÇ Á߿伺¿¡ ´ëÇÏ¿© ¼³¸íÇϽÿÀ.

¾Æ·¡¸¦ ¼³¸íÇ쵂 ¹Ýµå½Ã ±×¸²À» ±×·Á¼­ ¼³¸íÇϽÿÀ. (30Á¡)
(9) ´ç´¢ ȯÀÚÀÇ °æ¿ì¿¡ ÀϾ ¼ö ÀÖ´Â metabolic pathway¸¦ ¼³¸íÇ쵂 ´ÙÀ½ÀÇ Áö½Ã¿¡ ÇÕ´çÇÏ´Â ´äÀ» ÀûÀ¸½Ã¿À.
a) insulinÀÌ ºÐºñµÇÁö ¾Ê¾Æ¼­ glucose ´ë»ç°¡ ¹æÇØµÈ´Ù°í °¡Á¤ÇÑ´Ù¸é ü³»ÀÇ ¿µ¾çºÐÀº ¾î¶»°Ô ºÐÇØµÇ¾î »ýü¿¡³ÊÁö·Î ÀÌ¿ëÇÏ´ÂÁö ¼³¸íÇϽÿÀ.
b) allosteric interaction, covalent modification, enzyme levelÀÇ Á¶Á¤, compartmentationÀÇ ´Ü¾î¸¦ »ç¿ëÇÏ¿© ¼³¸íÇϽÿÀ.

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