19. If carbon 1 is the carbony 1 group of an aldopentose, which carbon determines if the sugar is a o- or L- stereoisomer? (A) 1 (B) 2 (C)3 (D) 4 (E) 5

19. If carbon 1 is the carbony 1 group of an aldopentose, which carbon determines if the sugar is a o- or L- stereoisomer?
(A) 1
(B) 2
(C)3
(D) 4
(E) 5

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統計： A(0), B(1), C(2), D(0), E(1) #3167908

詳解 (共 2 筆)

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B1 · 2025/11/03

#7015048

題目解析在這道題目中，我們需要理解五碳...

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B2 · 2026/01/29

#7288010

D，n-1位，詳情請看d,l form命名

28. PNGase F is the most effective enzyme for removing N-linked oligosaccharides from glycoproteins/glycopeptides. The glycan removal is accompanied by deamidation of the asparagine side-chain to which the N-linked oligosaccharides are attached. Which of the following statements is false about the target protein after PNGase F treatment? (A) The molecular weight of the target protein will be reduced. (B) The extinction coefficient at 280 nm of the target protein will be unchanged. (C) The primary structure of the target protein will be the same. (D) The target protein will gain additional aspartic acid residues. (E) The isoelectric point of the target protein will be reduced.

19. If carbon 1 is the carbony 1 group of an aldopentose, which carbon determines if the sugar is a o- or L- stereoisomer?
(A) 1
(B) 2
(C)3
(D) 4
(E) 5

詳解 (共 2 筆)

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相關試卷

19. If carbon 1 is the carbony 1 group of an aldopentose, which carbon determines if the sugar is a o- or L- stereoisomer?(A) 1(B) 2(C)3(D) 4(E) 5

詳解 (共 2 筆)

相關試題

相關試卷

19. If carbon 1 is the carbony 1 group of an aldopentose, which carbon determines if the sugar is a o- or L- stereoisomer?
(A) 1
(B) 2
(C)3
(D) 4
(E) 5