Qhov sib txawv tseem ceeb ntawm palisade parenchyma thiab spongy parenchyma yog palisade parenchyma muaj cov kab mob columnar uas tau ntim nruj rau hauv qab ntawm daim tawv nqaij sab sauv ntawm nplooj thaum spongy parenchyma muaj cov kab sib npaug uas yog xoob txheej hauv qab palisade parenchyma.
Nplooj yog cov txheej txheem tseem ceeb ntawm cov nroj tsuag uas tsim zaub mov los ntawm photosynthesis. Yog li ntawd, lawv yog tshwj xeeb nyob rau hauv thiaj li yuav nqa tawm photosynthesis. Cov hlwb raug teeb tsa zoo hauv nplooj. Tsis tas li ntawd, muaj ob lub ntsiab ntawm photosynthetic hlwb hauv cov nplooj nplooj. Lawv yog palisade parenchyma thiab spongy parenchyma. Ob leeg yog cov ntaub so ntswg mesophyll. Ob hom cell muaj chloroplasts thiab tshwm hauv xim ntsuab. Palisade parenchyma hlwb muaj nyob rau hauv dorsiventral nplooj thaum spongy parenchyma hlwb muaj nyob rau hauv ob dorsiventral thiab isobilateral nplooj.
Palisade Parenchyma yog dab tsi?
Palisade parenchyma yog cov ntaub so ntswg sab sauv uas muaj nyob hauv cov nplooj ntoo. Nws yog nyob rau hauv lub Upper epidermis ntawm dorsiventral nplooj. Nws muaj cov kab uas zoo li columnar. Cov hlwb raug kaw nruj nreem tsis muaj qhov chaw intercellular.
Daim duab 01: Palisade Parenchyma
Chloroplast muaj ntau heev hauv cov ntaub so ntswg parenchyma. Yog li ntawd, lub palisade parenchyma cov ntaub so ntswg tshwm nyob rau hauv tsaus ntsuab xim. Tsis zoo li spongy parenchyma, palisade parenchyma hlwb tsis muaj kab noj hniav.
Spongy Parenchyma yog dab tsi?
Spongy parenchyma yog cov ntaub so ntswg hauv qab thiab thib ob hauv cov nplooj ntoo. Nws yog nyob rau hauv lub palisade parenchyma, nyob rau hauv lub qis epidermis. Spongy parenchyma hlwb yog xoob txheej; Yog li ntawd, muaj ntau qhov chaw intercellular ntawm cov hlwb. Cov hlwb yog oval-puab lossis tsis sib xws.
Daim duab 02: Spongy Parenchyma
Hauv kev sib piv rau palisade parenchyma, spongy parenchyma muaj cov chloroplasts tsawg. Yog li ntawd, cov ntaub so ntswg no tshwm nyob rau hauv lub teeb ntsuab xim. Spongy parenchyma hlwb muaj cov kab mob ua pa thiab cov hlwb qhib rau sab nraud los ntawm stomata.
Dab tsi zoo sib xws ntawm Palisade Parenchyma thiab Spongy Parenchyma?
- Ob leeg palisade parenchyma thiab spongy parenchyma muaj nyob hauv cov nplooj ntoo.
- Lawv yog cov ntaub so ntswg.
- Ob hom cell yog photosynthetic.
- Lawv tshwm xim ntsuab vim muaj cov chloroplasts.
- Cov hlwb no muaj cov phab ntsa ntawm tes.
Qhov txawv ntawm Palisade Parenchyma thiab Spongy Parenchyma yog dab tsi?
Palisade parenchyma yog txheej txheej mesophyll sab saud ntawm elongated chlorenchyma hlwb, muaj cov chloroplasts ntau. Nyob rau hauv sib piv, spongy parenchyma yog lub qis mesophyll txheej ntawm kheej kheej los yog ovoid hlwb uas muaj ob peb chloroplasts thiab heev nrov intercellular cua qhov chaw. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm palisade parenchyma thiab spongy parenchyma. Tsis tas li ntawd, palisade parenchyma yog nyob rau hauv qab lub epidermis sab sauv, thaum spongy parenchyma yog nyob rau hauv qab palisade parenchyma mus rau sab epidermis.
Ntxiv mus, palisade parenchyma muaj ntau cov chloroplasts, thaum spongy parenchyma muaj cov chloroplasts tsawg. Tsis tas li ntawd, palisade parenchyma hlwb tau ntim nruj heev yam tsis muaj qhov chaw intercellular, thaum lub spongy parenchyma hlwb yog xoob ntim nrog ntau qhov chaw intercellular.
Cov hauv qab no qhia txog qhov sib txawv ntawm palisade parenchyma thiab spongy parenchyma.
Summary – Palisade Parenchyma vs Spongy Parenchyma
Palisade parenchyma hlwb muaj nyob rau hauv qab lub epidermis ntawm dorsiventral nplooj. Lawv yog columnar cell. Tsis tas li ntawd, lawv muaj cov chloroplasts ntau heev thiab lawv tau ntim cov hlwb nruj heev. Ntawm qhov tod tes, spongy parenchyma hlwb yog sib npaug thiab xoob ntim. Muaj qhov chaw nruab nrab ntawm spongy parenchyma hlwb thiab lawv nyob hauv qab palisade parenchyma. Hauv kev sib piv rau palisade parenchyma, spongy parenchyma hlwb muaj cov chloroplasts tsawg. Yog li ntawd, lub sab sauv mesophyll txheej tshwm nyob rau hauv tsaus ntsuab thaum lub qis mesophyll txheej tshwm nyob rau hauv tsawg ntsuab. Yog li, qhov no qhia txog qhov sib txawv ntawm palisade parenchyma thiab spongy parenchyma.
