14 Which of the following is closest in meaning to the word “immutable” in the passage? (A) Cynical. (B) Fixed. (C) Colorful. (D) Monotonous.

14 Which of the following is closest in meaning to the word “immutable” in the passage?
(A) Cynical.
(B) Fixed.
(C) Colorful.
(D) Monotonous.

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統計： A(2), B(4), C(3), D(3), E(0) #3226551

詳解 (共 1 筆)

B1 · 2024/09/17

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Which of t...

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4. 催產素(Oxytocin)是一種哺乳動物激素，同時也是大腦中的神經傳遞物質，可促進分娩和哺乳。催產素是由九個胺基酸所組成的胜肽。其主要序列為半胱胺酸–酪胺酸–異亮胺酸–谷氨醯胺–天冬胺酸–半胱胺酸–脯胺酸–亮胺酸–甘胺酸。(Cys–Tyr–Ile–Gln–Asn–Cys–Pro–Leu– Gly)，在其活性形式下，催產素會形成一個環狀結構。請問哪種化學鍵類型最適合形成這個環狀結構？ (A)半胱胺酸和甘胺酸之間的硫酯鍵(B)半胱胺酸和半胱胺酸之間的二硫鍵(C)半胱胺酸和甘胺酸之間的醯胺鍵(D)酪胺酸的酚基和甘胺酸之間的酯鍵

14 Which of the following is closest in meaning to the word “immutable” in the passage?
(A) Cynical.
(B) Fixed.
(C) Colorful.
(D) Monotonous.

詳解 (共 1 筆)

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