Frunza
The Leaf Structure Quiz
Test your knowledge of leaf structures and characteristics with our comprehensive quiz! Perfect for students, teachers, and those looking to deepen their understanding of botanical science.
- 20 engaging questions
- Multiple choice and open-ended formats
- A great way to prepare for exams or enhance your learning experience
Ohreea este:
Un tip de hipsofila
Anexa foliara cu aspect de cornet
Anexa caracteristica gramineelor
Frunza metamorfozata cu rol in protectia mugurilor
Dintre caracteristicile frunzei fac parte:
Cresterea ortotropa pozitiva
Bisimetria
Structura radiala
Monosimetria
Inserarea pe internod
Numim frunze conate cele care:
Au marginea intreaga
Sunt dispuse opus
Sunt lipsite de teaca si limb
Au limbul format din foliole
Sunt amplexicaucale, dispuse opus si concrescute prin baza limbului
Plierea frunzelor dupa nervurile secundare este caracteristica tipului de profelatie:
Plicata
Conduplicata
Convulta
Circinata
Plana
In cazul mezofilului bifacial:
Sunt stomate in ambele epiderme
Tesutul palisadic se afla sub epiderma inferioara
Parenchimul asimilator este format din celule izodiametrice
Parenchimul asimilator este diferentiat in tesut palisadic sub epiderma superioara si lacunos desupra epidermei inferioare
Stomatele se gasesc in epiderma inferioara
*Anizofilia este:
Un tip de dispunere a frunzelor pe tulpina
Caracteristica unor specii cu tulpini plagiotrope
Formarea a doua frunze asemanatoare la nod
*Dintre frunzele care indeplinesc alte functii (in afara fotosintezei, respiratiei si transpiratiei) fac parte:
Tunicile la ceapa
Cele cu rol de sustinere a plantei
Hipsofilele
*In dezvoltarea ontogenetica a plantelor se pot intalni urmatoarele categorii de frunze:
De protectie a mugurilor
Glumele, bracteea
Cele cotiledonare
Nomofilele
Cele transformate in spini
*Filodiile si stipelele la mazare sunt structuri foliare:
Cu rol de sustinere a planei
Asimilatoare
Metamorfozate
Adaptate pentru depozitare
Acvatice
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