Credit: GERD GUENTHER/SCIENCE PHOTO LIBRARY

Caption: Paramecium caudatum ciliates from culture material. Focused on one individual, which shows pulsation cycles of the two contractile vacuoles. The contractile vacuoles act as osmotic regulators, controlling the influx of water across the ciliate's membrane by active expulsing the water out of the cell via the expulsing pores. Expulsion pores are located in the middle of the round-shaped contractile vacuoles and are easily visible with this magnification. Paramecia move by the rhythmic beating of many hair-like cilia, feed mainly on bacteria. These are digested within temporary digestive vacuoles which float within the cell cytoplasm. Capturing device: DSLR Canon 5DMk2 with Microscope adaption. Microscopic contrast method : Differential interference contrast. Captured field width : 0,17 mm.

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Keywords: aquatic, biological, biology, cilia, ciliate, ciliates, cilium, conjugation, dic, differential interference contrast, eating, expulsing pore, fauna, feeding, freshwater, light microscope, locomotion, membranelles, microbiological, microbiology, microorganism, microscope, microscopic, motile, mouth, osmoregulation, paramecium, paramecium sp, pond life, protist, protozoa, protozoan, single celled, single-celled, unicellular, wildlife, zoological, zoology

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Paramecium

K004/5344 Rights Managed

Downloadable master

Duration: 00:00:35

Frame size: 1920x1080

Frame rate: 24

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 1.6G

Original

Capture format: Canon EOS 5D Mark II

Codec: Uncompressed 8-bit 4:2:2

Please contact Science Photo Library if you require the original, or other formats.

 

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