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Videos illustrating topics covered on this site: Protista


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Amoeba in motion 

from drralfwagner

First the colorless ectoplasma moves in front of the pseodopodia, followed by the grained entoplasma. The video is done with the phase contrast technique. Please have a look at my homepage for more: http://www.dr-ralf-wagner.de

See:
Protista: structure and function: amoeba
Amoeba, an introduction

Amoeba feeding

from jsmead

The amoeba puts out a pseudopodium and engulfs a small flagellate

See:
Protista: structure and function: amoeba
Amoeba, an introduction

Parmecium eating pigmented yeast

from wxfix - Linny Merrybird.

The yeast cells have been stained with a dye (Congo red). This doesn't show up until they are grouped together in a food vacuole. The first stage of digestion is acid and the final phase is alkaline. This turns the dye from red to blue.

See:
Protista: structure and function: paramecium
Paramecium, an introduction

Paramecium: contractile vacuole

from ppornelubio

This video has an audio commentary. The feeder channels bring water to the vacuole which then contracts

See:
Protista: structure and function: paramecium
Paramecium, an introduction

Paramecium feeding

from jsmead

In the Paramecium static at the base of the screen, the ciliary current in the oral groove can be seen wafting food particles into the cytostome where they accumulate to form food vacuoles. These vacuoles then circulate round in the cytoplasm of the Paramecium. The contractile vacuoles can also be seen, filling and collapsing.

See:
Protista: structure and function: paramecium
Paramecium, an introduction

Vorticella feeding

from EDFWilliams

The ring of cilia creates a current a which brings food particles to the oral groove where they form food vacuoles.

See:
Protista: structure and function: vorticella

Flagella and cilia

from jayaa001

This video has an audio commentary. A mixture of protista using flagella or cilia for locomotion or feeding

See:
Protista: structure and function

   

See: Protista: structure and function

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