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• 64. Which complex in the electron-transport chain contains copper ions?(A) Complex I (B) Complex II
• 65. Pyruvate is oxidized to produce ________, which further reacts with ________ to produce ________
• 29. ( ) Edward is busy Christmas cards for his friends.(A) make (B) to make (C) making (D) to making
• 31. ( )A: Who is watching TV in the living room?B: Mom and Dad .(A) is (B) do (C) are (D) doing
• 66. Phosphate (Pi) is transported into the mitochondria from the cytosol by a phosphate carrier whic
• 67. When monosaccharide dissolves in water at 40°C, it can undergo interconversion between α and β f
• 68. Phospholipase C hydrolyzes phosphatidylinositol 4,5-bisphosphate (PIP2) to form which signaling
• 69. Topoisomerases:(A) can change the linking number in increments of 1 or 2.(B) can act on single-s
• 36. ( ) A:B: It’s eleven seventeen.(A) What is the time? (B) What day is it today?(C) How old is you
• 35. ( ) A: Joe’s parents are fighting again. And this time, they fight like cat and dog.B: Poor Joe!
• 37. ( ) A:B: She’s from America.(A) What is the girl doing? (B) Where is your friend from?(C) Who is
• 70. The ion channel that opens in response to acetylcholine is an example of a ________ signal trans
• 39. ( ) A: How’s your brother doing?B:(A) He’s not ready. Wait, please. (B) He’s funny. (C) He’s ove
• 71. The energy of a photon absorbed by an antenna molecule of the photosystem finds its way to a chl
• 72. In the erythrocyte, glycolysis produces ________that is further metabolized to ________.(A) lact
• 34. ( ) Betty is doing her homework, and we , too.(A) do (B) be (C) are (D) is
• 33. ( ) My brother is sitting at the table and dinner now.(A) eat (B) let’s eat (C) don’t eat (D) ea
• 73. What role does AP endonuclease have in the base-excision repair system?(A) It removes the damage
• 74. Restriction-modification systems:(A) exist in all organisms as a protection against foreign DNA
• 75. DNA polymerase I synthesizes new DNA with very high fidelity, due to its ________.(A) high proce
• 76. Which of the following is related to the function of proofreading step?(A) Riboswitch (B) EF-G i
• 38. ( ) The game is eight Saturday morning.(A) on; on (B) on; at (C) at; on (D) at; at
• 79. What type of mutation causes conditions such as Huntington’s disease and Fragile X syndrome?(A)
• 78. What acts as the nucleophile in the mechanism of nucleotide addition by RNA polymerase?(A) The 5
• 40. ( ) A: Everyone, nice to your parents.B: OK, Ms. Smith.(A) is (B) are (C) do (D) be