Blue-green alga,Chroococcus
Numéro d’image : 11526935
| Light micrograph of a unicellular cyanobacteria (blue-green algae),Chroococcus,commonly found in an aquatic environment. Cyanobacteria have a different internal structure to the algae & are regarded as closer to bacteria. They are prokaryotic organisms with no membrane-bound nucleus. Instead their nuclear material is dispersed through the cell like that of the bacteria. Their chloroplasts are not restricted by a membrane,but lie free in the cell. In addition to a cell wall,Chroococcus cells are surrounded by a colloidal sheath. Several cells may cohere after cell division,forming incipient colonies as here. Magnification: x250 at 35mm size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Stammers, Sinclair |
| Taille de l’image : | 3676 px × 2480 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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