Suberin ua haujlwm raws li lub cev thaiv kev, tiv thaiv dej los ntawm cov ntaub so ntswg nws ib puag ncig nrog rau kev tiv thaiv kab mob. Nws kuj tsim ib qho tseem ceeb ntawm cov txheej txheem kho qhov txhab hauv cov nroj tsuag; Qhov tseeb tus qauv tseem ceeb los kawm suberin thiab cov txheej txheem suberization yog qos yaj ywm tuber.
Lub luag haujlwm ntawm suberin hauv cork hlwb yog dab tsi?
Suberin yog cov khoom siv phab ntsa ntawm tes uas tsim cov roj- thiab dej tsis sib haum. … Cork hlwb muaj nyob rau hauv ib tug thib ob txheej tiv thaiv (periderm) nyob rau hauv cov tawv ntoo. Cork cov khaubncaws sab nraud povtseg uas muaj suberin tiv thaiv cov nroj tsuag tiv thaiv kev poob dej, kab mob los ntawm kab mob, thiab raug tshav kub
Suberin Class 9 yog dab tsi?
Suberin yog a wax zoo li fatty substance. Suberin yog hydrophobic heev thiab nws tiv thaiv dej los ntawm kev nkag mus rau cov ntaub so ntswg. Suberin muaj nyob rau hauv lub cell phab ntsa ntawm cork hlwb. Nws ua rau cov hlwb impervious rau gases thiab dej.
Dab tsi yog qhov tseem ceeb ntawm suberin nws pom nyob qhov twg?
Suberin yog lipophilic macromolecule pom nyob rau hauv cov phab ntsa tshwj xeeb ntawm cov nroj tsuag, txhua qhov chaw rwb thaiv tsev lossis kev tiv thaiv rau ib puag ncig yog xav taucov hlwb suberized tsim cov periderm, cov ntaub so ntswg uas ntim cov kab mob thib ob ua ib feem. ntawm cov tawv ntoo, thiab txhim kho raws li cov ntaub so ntswg sealing tom qab qhov txhab los yog nplooj abscission.
Lub luag haujlwm ntawm suberin hauv cork cells Class 9 yog dab tsi?
Cov hlwb ntawm cork yog nplua nuj nyob rau hauv suberin, uas yog ib tug jelly zoo li compound. Qhov no tsis tso cai yooj yim poob dej los ntawm cov nroj tsuag thiab ntoo thiab tswj kev sib pauv ntawm cov pa nruab nrab ntawm cov palnts thiab nws ib puag ncig. … Nws muab kev siv lub zog rau cov nroj tsuag.
