資訊推薦

• 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
• 25. Regarding to inhibition mechanisms, which statement below is correct?(A) If the inhibitor binds
• 26. With an enzyme following Michaelis behavior, what initial velocity would you expect, when the su
• 27. If an enzyme has a Vmax of 10 unit and its Km is 8 mM, how fast can the enzyme catalyze the reac
• 28. Which type of inhibitor will a minimal impact on the enzyme’s Km ?(A) Competitive (B) Un-competi
• 29. Which type of inhibitor will a minimal impact on the enzyme’s Vmax?(A) Competitive (B) Un-compet
• 30. When a protein is hydrolyzed with strong alkaline, which amino acids will be underestimated?(A)
• 31. Which nucleosides below contain both purines?(A) C, T (B) C, G (C) A, G (D) A, T
• 32. Which nucleoside occurs rarely in RNA?(A) Thymidine (B) Uridine (C) Cytodine (D) Guanosine
• 33. Which part of nucleotide determines if it is DNA or RNA?(A) Purines (B) Pyrimidines (C) Ribose (
• 34. Which part of ATP contributes to its energy charge?(A) Purines (B) Pyrimidines (C) Ribose (D) Ph
• 35. Which one of the following is not a purine?(A) Adenine (B) Cytosine (C) Guanine (D) Inosine
• 36. Which nucleotide pairing is more stable than the rest?(A) dC, dG (B) dA, dT (C) G, U (D) Hoogste
• 37. Which molecule below is most likely to form hair-pin structures(A) dsDNA (B) mRNA (C) ssRNA (D)
• 38. What factors may affect the melting temperature of DNA(A) Nucleotide length (B) C, G content (C)
• 39. With uv light exposure, what DNA damage is likely to form?(A) de-purination (B) de-amination (C)