Maxaa dhici kara haddii koritaanka angiosperm cusub uusan helin iftiin? Marka la eego su'aasha hore, ku qor macnaha guud ee jawaabta. Waxay noqon kartaa 1 ilaa 20 jumladood. Macnaha guud:
Haddii caleemaha angiosperm aan la soo bandhigin iftiinka loo baahan yahay si loo abuuro chloroplast, proplastids waxay u gudbi karaan marxaladda etioplast ka hor inta aysan noqon chloroplasts. Cudurka loo yaqaano etioplast waa plastid oo aan lahayn chlorophyll, wuxuuna leeyahay invaginations xuubka gudaha ah oo sameeya shabag tuubbooyin ah oo ku jira stroma, oo loo yaqaan jirka prolamellar. Halka etioplasts aysan lahayn chlorophyll, waxay leeyihiin horudhac chlorophyll huruud ah oo la kaydiyay. Daqiiqado yar gudahood marka la iftiimiyo, jirka prolamellar wuxuu bilaabaa inuu dib u abaabulo si uu u noqdo tuulmooyin thylakoid ah, iyo chlorophyll wuxuu bilaabaa in la soo saaro. Qaabkan, oo ah in etioplast uu noqdo chloroplast, wuxuu qaataa dhowr saacadood. Gymnosperms uma baahna iftiin si ay u sameeyaan chloroplasts.