Leaf structure, SEM
Référence de la vidéo 11921574
| Leaf structure. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a seedling leaf. The top of the leaf is at bottom. The fracture has revealed the size of the plant cells (round, some damaged) relative to the thickness of the leaf. Palisade parenchyma tissue is brown and spongy parenchyma tissue is green. This seedling is a dicot, which means that it has two cotyledons (the embryonic leaves of a seed). The leaves of a plant contain the chlorophyll by which a plant harnesses the energy of sunlight, using it to make food in the process called photosynthesis. | |
| Licence : | Libre de droits |
| Crédit : | Science Photo Library / Gschmeissner, Steve |
| Model Release : | Non requis |
| Property release : | Non requis |
| Durée : | 17 Secondes |
| Aspect ratio : | 16/9 |
| Restrictions : | - |
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Mots-clés
- 10 secondes ou plus,
- anatomie,
- anatomique,
- aucune personne,
- biologie,
- biologique,
- botanique,
- cellule,
- cellules,
- coloré,
- colorié,
- colorisé,
- cotylédon,
- dicotylédone,
- divisé,
- épiderme,
- épidermique,
- feuille,
- flore,
- fracture de gel,
- fracture due au gel,
- gros plan,
- M.E.B.,
- MEB,
- mésophylle,
- microscope,
- microscope électronique à balayage,
- microscopie,
- nature,
- panoramique droit,
- personne,
- plante,
- semis,
- structure,
- structure d'une feuille,
- structure feuille