Paramecium protozoa. Light micrograph of Paramecium caudatum,a ciliate protozoan,showing two large contractile cavities (vacuoles) with radiating channels and other smaller vacuoles. Contractile vacuoles act as osmotic regulators controlling the flow of water across the membrane of the protozoan. Excess water collects in the vacuole and is discharged through a pore at the surface. P. caudatum moves through the water by beating tiny,hair-like structures (cilia) along the length of its body. Magnification: x133 at 35mm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Grave, Eric |
Taille de l’image : | 3611 px × 2480 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |