Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Kwayar tsire-tsire ta musamman ce, wacce ta ƙunshi ƙwayoyin parenchyma, waɗanda ke rufe farfajiyar waje na ganye, tushe da tushen. Za'a iya samun nau'ikan sel da yawa a cikin epidermis. A cikin waɗannan akwai ƙwayoyin tsaro na stomatal waɗanda ke sarrafa saurin musayar iskar gas tsakanin tsire-tsire da yanayi, glandular da gashin tufafi ko trichomes, da gashin tushen tushen asali. A cikin epidermis na yawancin tsire-tsire, kawai ƙwayoyin masu tsaro suna da chloroplasts. Chloroplasts sun ƙunshi kore pigment chlorophyll wanda ake buƙata don photosynthesis. Kwayoyin epidermal na gabobin sama sun taso ne daga layin kwayoyin halitta da aka sani da tunica (L1 da L2 layers) wanda ke rufe tsire-tsire na tsire-tsire, yayin da cortex da jijiyoyin jini suka tashi daga cikin ciki na tsire-tsire na tsire-tsire da aka sani da jikin (L3 Layer). Kwayar halittar tushen ta samo asali ne daga layin sel kai tsaye a ƙarƙashin murfin tushen. An rufe fata na dukkan gabobin sama, amma ba asalinsu ba, tare da cuticle da aka yi da polyester cutin ko polymer cutan (ko duka biyun), tare da layin surface na epicuticular waxes. Kwayoyin epidermal na farkon harbe ana zaton su ne kawai ƙwayoyin tsire-tsire tare da ikon biochemical don haɗa cutin.  Tambaya: Menene ƙwayoyin epidermal za su iya yi?
hada cutin