Qhov sib txawv tseem ceeb ntawm exine thiab intine yog tias exine yog txheej txheej ntawm paj ntoos paj ntoo uas muaj sporopollenin, thaum intine yog txheej sab hauv ntawm paj ntoos nplej uas muaj cellulose thiab pectin.
Pollen yog tus txiv neej gametophyte tiag tiag ntawm cov noob nroj tsuag. Nws yog ib qho kev txo qis ntawm gametophyte. Tsis tas li ntawd, paj ntoos yog ib lub cell. Tsis tas li ntawd, nws muaj txiv neej cov noob qes ntawm cov nroj tsuag no. Tsis tas li ntawd, anthers dais pollens hauv hnab thiab los ntawm pollination pollens tso rau ntawm stigma ntawm paj. Tsis tas li ntawd, muaj ob txheej uas nyob ib puag ncig sab hauv ntawm paj ntoos. Lawv yog exine thiab intine. Lub exine yog ib qho nyuaj, thicker thiab ntau resistant tshaj lub puab txheej: intine.
Exine yog dab tsi?
Lub exine yog txheej txheej ntawm paj ntoos nplej. Sporopollenin yog cov khoom tseem ceeb ntawm exine. Cov khoom siv organic yog ib qho ntawm cov tshuaj tiv thaiv thiab nyuaj tshaj plaws. Yog li ntawd, exine kuj tseem muaj zog dua thiab nyuaj dua li txheej txheej ntawm paj ntoos, uas yog lub hauv paus. Tsis tas li ntawd, exine yog ib txheej tuab piv rau intine. Yog li ntawd, exine tuaj yeem zam qhov hnyav ib puag ncig, suav nrog qhov kub siab, muaj zog acid, muaj zog alkali thiab lwm yam.
Daim duab 01: Cov qauv paj ntoos
Dhau li ntawm, exine muaj folds, creases thiab spikes nce los ntawm nws nto. Cov qauv no pab pollen nplej kom lo rau ob txhais ceg ntawm kab thiab ntes cua.
Intine yog dab tsi?
Intine yog txheej sab hauv ntawm paj ntoos nplej uas muaj cellulose thiab pectin. Hauv kev sib piv rau exine, intine yog nyias thiab ib txheej nyuaj dua.
Daim duab 02: Intine
Ntxiv mus, nws tsis tshua muaj resistant rau hnyav ib puag ncig. Intine nyob sab hauv rau exine.
Dab tsi yog qhov zoo sib xws ntawm Exine thiab Intine?
- Exine thiab intine yog ob txheej ntawm paj ntoos nplej.
- Ob leeg yog cov npog tawv uas tiv thaiv cov paj ntoo.
- YLawv yog tsim los ntawm polymers.
Qhov txawv ntawm Exine thiab Intine yog dab tsi?
Lub exine yog txheej txheej txheej ntawm sporopollenin. Hauv qhov sib piv, intine yog txheej txheej sab hauv uas muaj cellulose thiab pectin. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm exine thiab intine. Ntxiv mus, qhov sib txawv ntxiv ntawm exine thiab intine yog tias cov exine yog ntau resistant thiab thicker, thaum lub intine yog tsawg resistant thiab thinner. Tsis tas li ntawd, exine muaj folds thiab spikes thaum lawv tsis nyob hauv intine.
Hauv qab infographic qhia qhov txawv ntawm exine thiab intine.
Summary – Exine vs Intine
Nyob rau hauv kev xaus qhov sib txawv ntawm exine thiab intine, lub exine thiab intine yog ob txheej uas npog cov paj ntoos nplej. Ntawm no, exine yog txheej txheej txheej tsim los ntawm sporopollenin thaum intine yog txheej sab hauv tsim ntawm cellulose thiab pectin. Tsis tas li ntawd, lub exine yog ib txheej tuab. Tsis tas li ntawd, nws yog ntau resistant rau hnyav ib puag ncig tej yam kev mob. Tsis tas li ntawd, nws muaj folds, creases thiab spikes uas pab cov paj ntoos nplej kom lo rau ob txhais ceg ntawm kab thiab ntes cua. Tab sis, qhov sib txawv, intine yog ib txheej nyias thiab tsis tshua muaj zog thiab nyuaj.
