Nyob rau hauv cov nroj tsuag lub tonoplast pab txhawb kev thauj ntawm ib tug xov tooj ntawm ions thiab lwm yam khoom tiv thaiv concentration gradients mus rau hauv lub vacuoleyog li lawv cov concentration yog ho siab dua nyob rau hauv vacuole tshaj nyob rau hauv cytoplasm.
Tonoplast ua dab tsi rau tsob ntoo?
Kuj hu ua vacuolar membrane, lub tonoplast yog cov cytoplasmic membrane nyob ib ncig ntawm lub vacuole, cais cov ntsiab lus vacuolar los ntawm lub xov tooj ntawm tes cytoplasm. Raws li daim nyias nyias, nws feem ntau koom nrog hauv kev tswj kev txav ntawm ions nyob ib puag ncig ntawm tes, thiab cais cov ntaub ntawv uas yuav ua rau muaj kev phom sij lossis kev hem thawj rau lub xovtooj.
Puas yog tonoplast pab txhawb kev thauj cov ions tiv thaiv cov concentration gradient rau hauv vacuole?
Teb: (c) Tonoplast Hauv cov nroj tsuag cell lub vacuole nyob rau hauv khi los ntawm ib daim nyias nyias hu ua tonoplast. Lub tonoplast pab txhawb kev thauj cov ions thiab lwm yam khoom tiv thaiv kev sib xyaw ua ke rau hauv lub vacuole. Yog li, lawv cov concentration siab dua hauv thevacuole dua li hauv cytoplasm.
Yuav ua li cas tonoplast pab thauj cov ions thiab lwm yam khoom mus rau hauv lub vacuole?
Kev piav qhia: Tonoplast yog daim nyias nyias hauv vacuole uas tswj hwm qhov siab ntawm ions. thiab pab thauj cov ions ntau yam xws li calcium ions thiab nitrate ions, poov tshuaj ions tiv thaiv concentration gradient nrog kev pab los ntawm ATP. Qhov kev thauj mus los no tswj hwm osmotic siab hauv lub vacuole.
Tonoplast pab lub vacuole li cas?
Zaj Lus Qhia
Lub tonoplast yuav tsum ua haujlwm kom lub vacuole acidic los ntawm kev nqa hauv protons. Qhov no tso cai rau lub vacuole lub enzymes zom zaub mov. Lub tonoplast kuj nquag nqus cov poov tshuaj rau hauv thiab tawm ntawm lub vacuole. Qhov no tswj cov turgor siab nyob rau hauv lub cell, muab lub cell zoo.
