网站首页  汉语  德语  英语

请输入您要查询的英文单词:

 

单词 menaquinone
释义

Definition of menaquinone in English:

menaquinone

noun ˌmɛnəˈkwɪnəʊn-ˈkwīˌnōn
mass nounBiochemistry
  • One of the K vitamins, a compound produced by bacteria in the large intestine and essential for the blood-clotting process. It is an isoprenoid derivative of menadione.

    〔生化〕甲基萘醌类。亦称 vitamin K2

    Also called "vitamin K2"
    Example sentencesExamples
    • Mutant M249 preferentially accumulated menaquinone, which contains tetrahydrogeranylgeraniol as its side chain.
    • For example, menaquinone 7 could also be written as K [2.sub.35].
    • When administered, vitamin K 3 is alkylated to one of the vitamin K 2 forms of menaquinone.
    • The most common form of vitamin K in animals is menaquinone 4, produced by intestinal bacteria from exogenous naphthoquinones and transformed endogenously in our own cells.
    • The most common form of vitamin K2 in animals is menaquinone 4, produced by the processing of exogenous and bacterial naphthoquinones.

Origin

1940s: from the chemical name me(thyl)-na(phtho)quinone.

Definition of menaquinone in US English:

menaquinone

noun-ˈkwīˌnōn
Biochemistry
  • One of the K vitamins, a compound produced by bacteria in the large intestine and essential for the blood-clotting process. It is an isoprenoid derivative of menadione.

    〔生化〕甲基萘醌类。亦称 vitamin K2

    Also called "vitamin K2" (see vitamin K)
    Example sentencesExamples
    • When administered, vitamin K 3 is alkylated to one of the vitamin K 2 forms of menaquinone.
    • For example, menaquinone 7 could also be written as K [2.sub.35].
    • The most common form of vitamin K2 in animals is menaquinone 4, produced by the processing of exogenous and bacterial naphthoquinones.
    • Mutant M249 preferentially accumulated menaquinone, which contains tetrahydrogeranylgeraniol as its side chain.
    • The most common form of vitamin K in animals is menaquinone 4, produced by intestinal bacteria from exogenous naphthoquinones and transformed endogenously in our own cells.

Origin

1940s: from the chemical name me(thyl)-na(phtho)quinone.

随便看

 

雅致网英汉双解词典包含236457条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。

 

Copyright © 2002-2024 53pku.com All Rights Reserved
更新时间:2025/7/14 13:53:32