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单词 galactose
释义

Definition of galactose in English:

galactose

noun ɡəˈlaktəʊsɡəˈlaktəʊzɡəˈlæktoʊs
mass nounChemistry
  • A sugar of the hexose class which is a constituent of lactose and many polysaccharides.

    〔化〕半乳糖

    Example sentencesExamples
    • Its molecule is split in fermentation or digestion to yield the simple monosaccharide sugars dextrose and galactose.
    • The enzyme lactase breaks down the lactose to galactose and glucose.
    • The main symptom of this disease, which is treatable by the complete removal of lactose and galactose from the diet, is early onset cataracts.
    • The enzyme splits and hydrolyzes dietary lactose into glucose and galactose for transport across the cell membrane.
    • The sugars glucose, galactose, and fructose all have six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.

Origin

Mid 19th century: from Greek gala, galaktos 'milk' + -ose2.

Definition of galactose in US English:

galactose

nounɡəˈlæktoʊsɡəˈlaktōs
Chemistry
  • A sugar of the hexose class which is a constituent of lactose and many polysaccharides.

    〔化〕半乳糖

    Example sentencesExamples
    • The enzyme lactase breaks down the lactose to galactose and glucose.
    • The sugars glucose, galactose, and fructose all have six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.
    • The main symptom of this disease, which is treatable by the complete removal of lactose and galactose from the diet, is early onset cataracts.
    • Its molecule is split in fermentation or digestion to yield the simple monosaccharide sugars dextrose and galactose.
    • The enzyme splits and hydrolyzes dietary lactose into glucose and galactose for transport across the cell membrane.

Origin

Mid 19th century: from Greek gala, galaktos ‘milk’ + -ose.

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更新时间:2025/7/4 23:28:17