肽键(peptide bond)
一个氨基酸的α-羧基（α-carboxy group）和另一个氨基酸的α-氨基（α-amino group）形成的化学键。
举一反三
- Peptide bond formation is a ___________ reaction.
- The primary structure of protein is primarily maintained by A: peptide bond B: hydrogen bond C: ionic bond D: hydrophobic bond E: covalent bond
- The spacial conformation of protein is mainly determined by: () A: the<br/>sequence of amino acid B: α-helix<br/>and β-pleated sheets C: the<br/>side chain of amino acid in the peptide D: peptide<br/>bond in the peptide chain E: the<br/>location of disulfide bond in the peptide chain
- Which of the following bond link the nucleotide in the primary structure of nucleic acid? () A: peptide<br/>bond B: hydrogen bond C: 3′,5′-phosphodiester bond D: salt bond E: hydrophobic bond
- The primary<br/>structure of a protein is mostly maintained by () A: Peptide bond B: Hydrogen bond C: lonic bond D: Hydrophobic bonds E: Van der Waals<br/>interactions
内容
- 0
蛋白质分子结构中的特殊化学键包括（ ）。 A: peptide bond B: -S-S- C: Ester bond D: 离子键 E: 氢键 F: 范德华力
- 1
Which of the following descriptions about β-sheet is correct? A: It belongs to the tertiary structure of proteins B: Two peptide chains can not be anti-parallel C: The side chain of amino acids alternately is located above the peptide unit D: The skeleton of the main chain is zigzag E: There is no hydrogen bond between β-sheet peptide chains
- 2
In organic compounds, single bond is σ bond, only one of double bond and three bond is σ bond, the rest is π bond.
- 3
_________ is a bond secured by a mortgage on one or more assets. A: A convertible bond B: A treasury bond C: A mortgage bond D: A municipal bond
- 4
A consol bond is a bond that _________