Li-carbohydrate (le mosebetsi oa tsona)

Sengoli: Peter Berry
Letsatsi La Creation: 12 Phupu 2021
Ntlafatsa Letsatsi: 1 Phupu 2024
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The lik'habohaedreite, tse tsejoang ka hore ke lik'habohaedreite kapa lik'habohaedreite, ke li-biomolecule tsa bohlokoa tse fanang ka matla ho libopuoa ka potlako le ka sebopeho, ke ka lebaka leo li leng teng ka sebopeho sa limela, liphoofolo le li-mushroom.

The lik'habohaedreite li entsoe ka metsoako ea athomo Carbon, Hydrogen le Oxygen, e hlophisitsoeng ka ketane ea khabone le lihlopha tse fapaneng tse sebetsang, joalo ka carbonyl kapa hydroxyl.

Kahoo lentsoe lena "Likhabohaedreite" ha e hlile ha ea nepahala, hobane ha se potso ea limolek'hule tsa khabone e nang le hydrate, empa e lula e le teng ka lebaka la bohlokoa ba eona ho mofuta oa metsoako ea lik'hemik'hale. Hangata li ka bitsoa tsoekere, saccharides, kapa lik'habohaedreite.

The litlamo tsa limolek'hule tsa lik'habohaedreite li matla ebile li mahlahahlaha ( mofuta wa covalent), Ke ka hona ba etsang mofuta oa polokelo ea matla ka bokhabane ho chemistry ea bophelo, ba etsa karolo ea li-biomolecule tse kholo joalo ka protheine kapa lipids. Ka mokhoa o ts'oanang, tse ling tsa tsona ke karolo ea bohlokoa ea lebota la sele ea limela le cuticle ea li-arthropods.


Bona hape: Mehlala ea Li-carbohydrate tse 50

Li-carbohydrate li arotsoe ka:

  • Monosaccharides. E entsoe ke molek'hule e le 'ngoe ea tsoekere.
  • Dischcharides. E entsoe ka limolek'hule tse peli tsa tsoekere hammoho.
  • Oligosaccharides. E entsoe ka limolek'hule tse tharo ho isa ho tse robong tsa tsoekere.
  • Polysaccharides. Liketane tsa nako e telele tsa tsoekere tse kenyelletsang limolek'hule tse ngata hape ke li-polymeri tsa bohlokoa tse ipehetseng moahong kapa polokelong ea matla.

Mehlala ea lik'habohaedreite le mosebetsi oa tsona

  1. Tsoekere. Molek'hule ea Isomeric (e fuoeng likarolo tse tšoanang empa e na le meralo e fapaneng) ea fructose, ke eona ntho e ngata ka ho fetisisa tlhahong, kaha ke mohloli o moholo oa matla maemong a lisele (ka khokahano ea ona ea tlhaho).
  2. Ribose. E 'ngoe ea limolek'hule tsa bohlokoa bophelong, ke karolo ea metheo ea lintho tse kang ATP (adenosine triphosphate) kapa RNA (ribonucleic acid), e hlokahalang bakeng sa ho ikatisa ha lisele.
  3. Tlotlisang. Phetolo ea sehlopha sa hydroxyl ka athomo ea haedrojene e lumella ribose hore e fetoloe deoxysugar, e bohlokoa ho kopanya li-nucleotide tse etsang liketane tsa DNA (deoxyribonucleic acid) moo ho nang le tlhaiso-leseling e tloaelehileng ea sebopuoa.
  4. Fructose. E teng litholoana le meroho, ke molek'hule ea bo-khaitseli ea tsoekere, eo hammoho le eona ba etsang tsoekere e tloaelehileng.
  5. Glyceraldehyde. Ke tsoekere ea pele ea monosaccharide e fumanoeng ke photosynthesis, nakong ea lefifi la eona (potoloho ea Calvin). Ke bohato ba lipakeng litseleng tse ngata tsa metabolism ea tsoekere.
  6. Galactose. Tsoekere ena e bonolo e fetoloa tsoekere sebeteng, ka hona e sebetsa e le sepalangoang sa matla. Hammoho le sena, e boetse e theha lactose ka lebeseng.
  7. Glycogen. Ha e kenelle ka metsing, polokelo ena ea polysaccharide e na le mesifa e mengata, 'me hanyane sebeteng esita le bokong. Maemong a tlhoko ea matla, 'mele oe qhibilihisa ka hydrolysis hore e be tsoekere e ncha ho e ja.
  8. Lactose. E entsoe ka kopano ea galactose le tsoekere, ke tsoekere ea mantlha lebeseng le mafubeng a lebese (chisi, yogurt).
  9. Eritrosa. E teng ka har'a ts'ebetso ea photosynthetic, e teng ka tlhaho feela joalo ka D-erythrose. Ke tsoekere e qhibilihang haholo e nang le ponahalo e hlabosang.
  10. Cellulose. E entsoe ka li-unit tsa glucose, ke biopolymer e ngata ka ho fetisisa lefatšeng, hammoho le chitin. Likhoele tsa mabota a sele ea limela li entsoe ka eona, li a li tšehetsa, 'me ke pampiri e tala.
  11. Setala. Joalo ka ha glycogen e etsa polokelo ea liphoofolo, starch e etsa joalo bakeng sa meroho. Ke macromolecule ea polysaccharides joalo ka amylose le amylopectin, mme ke mohloli oa matla o sebelisoang haholo ke batho lijong tsa bona tse tloaelehileng.
  1. Chitin. Seo selulose e se etsang liseleng tsa limela, chitin e li etsa ka li-fungus le arthropods, e li fa matla a sebopeho (exoskeleton).
  2. Fucosa: Monosaccharide e sebetsang e le ankora ea liketane tsa tsoekere mme e bohlokoa molemong oa ho kopanya fucoidin, polysaccharide bakeng sa ts'ebeliso ea meriana.
  3. Ramnosa. Lebitso la eona le tsoa semeleng seo e ntšitsoeng ho sona pele (Rhamnus fragula), ke karolo ea pectin le li-polymeri tse ling tsa limela, hammoho le likokoana-hloko tse kang mycobacteria.
  4. Glucosamine. E sebelisoa e le tlatsetso ea lijo kalafong ea mafu a rheumatic, tsoekere ena ea amino ke monosaccharide e ngata ka ho fetesisa e teng ka har'a lisele tsa li-fungus le likhetleng tsa arthropods.
  5. Saccharose. E boetse e tsejoa e le tsoekere e tloaelehileng, e fumanoa haholo ka tlhaho (mahe a linotši, poone, 'moba, li-beet). 'Me ke eona e natefisang ka ho fetisisa lijong tsa batho.
  6. Stachyose. Ha e silehe ka botlalo ke batho, ke sehlahisoa sa tetrasaccharide sa kopano ea tsoekere, galactose le fructose, e teng meroho le limela tse ngata. E ka sebelisoa e le senate sa tlhaho.
  7. Cellobiose. Tsoekere e habeli (li-glucoses tse peli) e hlahang nakong ea tahlehelo ea metsi a tsoang selulose (hydrolysis). Ha a lokoloha ka tlhaho.
  8. Matosa. Letsoai la 'mela, le entsoeng ka limolek'hule tse peli tsa tsoekere, le na le matla a mangata haholo (le glycemic),' me le fumanoa lithollo tsa harese tse melang, kapa ka hydrolysis ea starch le glycogen.
  9. Kelello. Monosaccharide e sa tloaelehang ka tlhaho, e ka aroloa ho tsoa ho lithibela-mafu psychofuranin.E fana ka matla a fokolang ho feta sucrose (0.3%), ke ka hona e fuputsoang e le sebaka sa lijo tse phekolang mafu a glycemic le lipid.

Ba ka u sebeletsa:


  • Mehlala ea Lipids
  • Liprotheine li phetha mosebetsi ofe?
  • Lintlha tsa trace ke life?


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