Puas yog cellulose yog ib qho polymer ntuj lossis hluavtaws?

Celluloseyog ib qho polymer ntuj, ib qho tseem ceeb ntawm cov phab ntsa cell hauv cov nroj tsuag. Nws yog ib qho ntawm cov organic compounds ntau tshaj plaws hauv ntiaj teb thiab ua haujlwm ua cov khoom siv hauv lub nceeg vaj cog qoob loo. Thaum peb xav txog cellulose, peb feem ntau cuam tshuam nws nrog nws qhov muaj nyob hauv ntoo, paj rwb, ntawv, thiab ntau yam khoom siv los ntawm cov nroj tsuag.

Cov qauv ntawm cellulose muaj cov saw ntev ntawm cov piam thaj sib txuas ua ke los ntawm beta-1,4-glycosidic bonds. Cov saw no tau teeb tsa rau hauv txoj hauv kev uas tso cai rau lawv los tsim cov qauv fibrous muaj zog. Qhov kev teeb tsa tshwj xeeb ntawm cov saw no muab cellulose nws cov khoom siv kho tshuab zoo kawg nkaus, ua rau nws yog ib qho tseem ceeb hauv kev muab kev txhawb nqa rau cov nroj tsuag.

Cov txheej txheem ntawm kev tsim cov cellulose hauv cov nroj tsuag suav nrog cov enzyme cellulose synthase, uas ua rau cov glucose molecules ua cov saw ntev thiab extrudes lawv mus rau hauv phab ntsa cell. Cov txheej txheem no tshwm sim hauv ntau hom cell nroj tsuag, pab txhawb rau lub zog thiab kev tawv ntawm cov ntaub so ntswg nroj tsuag.

Vim nws muaj ntau thiab cov yam ntxwv tshwj xeeb, cellulose tau pom ntau daim ntawv thov dhau ntawm nws lub luag haujlwm hauv cov nroj tsuag biology. Kev lag luam siv cellulose rau kev tsim cov ntawv, textiles (xws li paj rwb), thiab qee hom biofuels. Tsis tas li ntawd, cellulose derivatives xws li cellulose acetate thiab cellulose ethers yog siv rau hauv ntau yam khoom, suav nrog cov tshuaj, cov khoom noj khoom haus ntxiv, thiab cov tshuaj pleev xim.

ThaumcelluloseTxawm hais tias nws tus kheej yog ib qho polymer ntuj, tib neeg tau tsim cov txheej txheem los hloov kho thiab siv nws hauv ntau txoj kev. Piv txwv li, kev kho tshuaj tuaj yeem hloov nws cov khoom kom ua rau nws tsim nyog rau cov ntawv thov tshwj xeeb. Txawm li cas los xij, txawm tias nyob rau hauv cov ntawv hloov kho, cellulose khaws nws cov hauv paus chiv keeb ntuj, ua rau nws yog cov khoom siv ntau yam thiab muaj nqis hauv ob qho tib si ntuj thiab tsim.