資訊推薦

• 39 甲公司於 2001 年 1 月 1 日購入機器乙部，價款為$900,000，另付運送安裝費$20,000，預估可使用 10 年，殘值為$20,000；到 2006 年初發現該機器只能再使用 2
• 28.Ethyl acetate 的紅外線吸收光譜中可以在 附近偵測到一組非常強的吸收訊號，其代表(A)O-H (B)C-H (C)C=O (D)C-C 的吸收訊號
• 40 存貨由加權平均法改採先進先出法之會計方法改變的累積影響應列示於：(A)資產負債表 (B)損益表 (C)保留盈餘表 (D)現金流量表
• 1. 下列敘述何者為正確?(A) 需求增加，供給減少，均衡價格上升，均衡數量不一定，(B) 需求減少，供給增加，均衡價格下跌，均衡數量不一定，(C) 需求減少，供給減少，均衡價格、數量均減少，(D)
• 26. 下列反應何者會進行 取代反應? (A) I (B) II (C) III (D) IV
• 5. Which amino acids carry a positive charge at pH 7?(A) Arg, His, Lys (B) Asp, Glu (C) Asn, Gln(D)
• 6. Which amino acids are not aromatic but have a ring structures in its side chain?(A) Phe, Tyr, Trp
• 7. Which amino acids have a secondary hydroxyl group that can be phosphorylated?(A) Serine (B) Threo
• 8. Which amino acids have a functional sulfhydryl group in it?(A) Met (B) Cys (C) Thr (D) Tyr
• 9. During the separation of protein molecules, which method will have smaller molecules being eluted
• 10. Given a polyalanine of 15 residues long, what kind of structure would you expect it to be in neu
• 11. When a polymer of 18-residue forms an α-helix, how many repeats would you expect it to be?(A) 3
• 12. How many cycle repeats would you expect to find from a β-sheet of 18 residues long?(A) 5 (B) 7 (
• 13. What amino acid residues are most likely to be found at type I or type II β-turns?(A) Ala (B) Gl
• 14. Which cofactor is required during the formation of collagen?(A) Retinol (B) Tocopherol (C) Ascor
• 15. Which amino acid residues are more likely to be found at the N-terminus of an α-helix?(A) D or E
• 16. What kind of protein secondary structure is human hair made of?(A) α-helix (B) β-sheet (C) β-tur
• 17. What kind of protein secondary structure is spider silk made of?(A) α-helix (B) β-sheet (C) β-tu
• 18. What proteins are involved in protein folding?(A) Ribonuclease A (B) Myoglobulin (C) Chaperonins
• 19. Which protein denaturant can unfold a protein reversibly?(A) Acid or alkaline (B) Organic solven
• 20. What forces drive the formation of protein tertiary structure?(A) Hydrophobic interaction (B) El
• 21. Which statement regarding to enzymes below is incorrect?(A) Most enzymes are proteins.(B) Enzyme
• 22. Which statement about enzymes below is correct?(A) An enzyme has specificity toward its substrat
• 23. An enzyme will have higher affinity for which one of the following?(A) The substrate (B)The reac
• 24. How does an enzyme lower the reaction activation energy?(A) By lowering the entropy(B) By bindin