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单词 monosaccharide
释义

monosaccharide

enUK

mon·o·sac·cha·ride

M0398500 (mŏn′ə-săk′ə-rīd′, -rĭd)n. Any of several carbohydrates, such as tetroses, pentoses, and hexoses, that cannot be broken down to simpler sugars by hydrolysis. Also called simple sugar.

monosaccharide

(ˌmɒnəʊˈsækəˌraɪd; -rɪd) n (Biochemistry) a simple sugar, such as glucose or fructose, that does not hydrolyse to yield other sugars

mon•o•sac•cha•ride

(ˌmɒn əˈsæk əˌraɪd, -ər ɪd)

n. a carbohydrate that does not hydrolyze, as glucose or fructose. [1895–1900]

mon·o·sac·cha·ride

(mŏn′ə-săk′ə-rīd′) Any of a class of simple carbohydrates that cannot be broken down to simpler sugars by hydrolysis. Fructose is a monosaccharide.
Thesaurus
Noun1.monosaccharide - a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydratesmonosaccharose, simple sugartriose - any monosaccharide sugar containing three atoms of carbon per moleculetetrose - any monosaccharide sugar containing four atoms of carbon per moleculepentose - any monosaccharide sugar containing five atoms of carbon per moleculehexose - a monosaccharide that contains six carbon atoms per moleculealdose - a monosaccharide sugar that contains the aldehyde group or is hemiacetalcarbohydrate, saccharide, sugar - an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they containketose - any monosaccharide sugar that contains a ketone group or its hemiacetal
Translations

monosaccharide

enUK

monosaccharide:

see carbohydratecarbohydrate,
any member of a large class of chemical compounds that includes sugars, starches, cellulose, and related compounds. These compounds are produced naturally by green plants from carbon dioxide and water (see photosynthesis).
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.

Monosaccharide

A class of simple sugars containing a chain of 3–10 carbon atoms in the molecule, known as polyhydroxy aldehydes (aldoses) or ketones (ketoses). They are very soluble in water, sparingly soluble in ethanol, and insoluble in ether. The number of monosaccharides known is approximately 70, of which about 20 occur in nature. The remainder are synthetic. The existence of such a large number of compounds is due to the presence of asymmetric carbon atoms in the molecules. Aldohexoses, for example, which include the important sugar glucose, contain no less than four asymmetric atoms, each of which may be present in either d or l configuration. The number of stereoisomers rapidly increases with each additional asymmetric carbon atom.

A list of the best-known monosaccharides is given below:

Aldose monosaccharides having 8, 9, and 10 carbon atoms in their chains have been synthesized. See Carbohydrate

monosaccharide

[¦män·ō¦sak·ə‚rīd] (biochemistry) A carbohydrate which cannot be hydrolyzed to a simpler carbohydrate; a polyhedric alcohol having reducing properties associated with an actual or potential aldehyde or ketone group; classified on the basis of the number of carbon atoms, as triose (3C), tetrose (4C), pentose (5C), and so on.

monosaccharide

a simple sugar, such as glucose or fructose, that does not hydrolyse to yield other sugars

monosaccharide

enUK

monosaccharide

 [mon″o-sak´ah-rīd] a simple sugar; a carbohydrate that cannot be broken down to simpler substances by hydrolysis. Subgroups include the aldoses and the ketoses.

mon·o·sac·cha·ride

(mon'ō-sak'ă-rīd), A carbohydrate that cannot form any simpler sugar by simple hydrolysis, for example, pentoses, hexoses. Synonym(s): monose

monosaccharide

(mŏn′ə-săk′ə-rīd′, -rĭd)n. Any of several carbohydrates, such as tetroses, pentoses, and hexoses, that cannot be broken down to simpler sugars by hydrolysis. Also called simple sugar.

monosaccharide

Simple sugar A monomer of a more complex carbohydrate Examples Glucose, fructose, galactose. Cf Disaccharide, Polysaccharide.

mon·o·sac·cha·ride

(mon'ō-sak'ă-rīd) A carbohydrate that cannot form any simpler sugar by simple hydrolysis; e.g., pentoses, hexoses.

monosaccharide

The simplest form of sugar. Monosaccharides are classified by the number of carbon atoms in the molecule. They may thus be trioses, tetroses, pentoses, hexoses, etc. The commonest monosaccharide in the body is GLUCOSE, which is a hexose, with six carbons.
MonosaccharideFig. 224 Monosaccharide . Molecular structures of (a) glucose, (b) fructose.

monosaccharide

a carbohydrate MONOMER, a simple sugar with the formula (CH2O)n, e.g. C6H12 O6 glucose and fructose. See Fig. 224 . Such carbohydrates are generally white, crystalline solids, with a sweet taste, and are usually soluble in water. The carbon chain forming the backbone of such sugars can be of varying lengths. Some monosaccharides contain only three carbons (‘triose’ types such as glyceraldehyde) others contain five carbons (‘pentose’ types such as the deoxyribose sugar of DNA), but those with six carbons (‘hexose’ types such as glucose) are the most important since they can be joined together by CONDENSATION REACTIONS (loss of water) to form DISACCHARIDES and POLYSACCHARIDES.

monosaccharide

enUK
  • noun

Synonyms for monosaccharide

noun a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars

Synonyms

  • monosaccharose
  • simple sugar

Related Words

  • triose
  • tetrose
  • pentose
  • hexose
  • aldose
  • carbohydrate
  • saccharide
  • sugar
  • ketose
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