複選題18. 下列有關植物體內的色素及其衍生物之敘述，哪些正確？ (A)類胡蘿蔔素(carotenodis)分布於細胞質，具有輔助光合作用功能 (B)玉米黃素(zea xanthine)存在於細胞的液泡內，與顏色有關，是一種天然的抗氧化劑 (C)光敏素(phytochromes)可由細胞質進入細胞核調節基因表現，具有調控種子萌芽功能 (D)隱色素(crytochromes) 對藍光敏感，可控制氣孔的開閉 (E)向光素(phototropins)是一種藍光受體，具有調節向光性功能

複選題
18. 下列有關植物體內的色素及其衍生物之敘述，哪些正確？
(A)類胡蘿蔔素(carotenodis)分布於細胞質，具有輔助光合作用功能
(B)玉米黃素(zea xanthine)存在於細胞的液泡內，與顏色有關，是一種天然的抗氧化劑
(C)光敏素(phytochromes)可由細胞質進入細胞核調節基因表現，具有調控種子萌芽功能
(D)隱色素(crytochromes) 對藍光敏感，可控制氣孔的開閉
(E)向光素(phototropins)是一種藍光受體，具有調節向光性功能

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統計： A(3), B(8), C(18), D(10), E(14) #3233839

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心誠則靈（已考上

B1 · 2024/05/17

#6100463

(D) 隱色素(crytochromes) 對藍光敏感，~~可控制氣孔的開閉~~

5. Humans have harmless E. coli strains that reside in the intestines. O157:H7 is an E. coli strain reported to cause several food poisoning deaths. Evidence suggests that the virulence of O157:H7 is caused by genes from a virus that infects bacteria. Considering this evidence, which of the following statements most likely explains how the O157:H7 population acquired the genetic variation that distinguishes it from the harmless E. coli strains? (A) The virus entered the bacterial cell, allowing the bacteria's cellular machinery to create new viruses. (B) Viral envelope proteins bound receptors on the bacteria, allowing the viral genetic material to enter the cytoplasm and be translated into proteins that increased that bacterium's virulence. (C) The virus entered the cell and reassorted to acquire specific genes from the bacteria to increase the virulence of the virus. (D) The virus infected the bacterium, and the bacterial population replicated with a copy of the phage genome in each new bacterium.

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