本题目来源于试卷: Form and Function B.1 Carbohydrates & Lipids，类别为 IB生物学
[单选题]
What bond is formed n pfl onbxr;j9 8,88rt :pv odc, *a:xomwzd;m 8l6d(obetween two glucose molecules to form maltose?
A. Hydrogen
B. Peptide
C. Alpha 1-4 linkage
D. Phosphodiester
参考答案: C
本题详细解析:
The bond formed between two glucose molecules to form maltose is an alpha 1-4 linkage. This is a covalent bond between two alpha glucose molecules, where the carbon #1 of one of the glucose molecules forms a bond with the carbon #4 of the other glucose molecule. Choice C is correct. A hydrogen bond (Choice A) is a weak electrostatic attraction between a hydrogen atom that is covalently bonded to a highly electronegative atom and another electronegative atom in a different molecule or region of the same molecule. For example, between two water molecules. Peptide bonds (Choice B) are covenant bonds that hold amino acids together in polypeptide chains, and phosphodiester bonds (Choice D) are covalent bonds between the ribose sugars and phosphate groups, forming the backbone of DNA and RNA. Choices A, B and D are incorrect.
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