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单词 galactose
释义

galactose

/ɡəˈlaktəʊz / /ɡəˈlaktəʊs/
noun [mass noun] Chemistry
A sugar of the hexose class which is a constituent of lactose and many polysaccharides.Its molecule is split in fermentation or digestion to yield the simple monosaccharide sugars dextrose and galactose....
  • The sugars glucose, galactose, and fructose all have six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.
  • The enzyme lactase breaks down the lactose to galactose and glucose.

Origin

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

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更新时间:2025/1/11 16:24:20