phagocytosis – The Artful Amoeba http://theartfulamoeba.com A blog about the weird wonderfulness of life on Earth Tue, 11 Mar 2014 16:22:24 +0000 en-US hourly 1 https://wordpress.org/?v=4.5.31 The Hungry Amoeba http://theartfulamoeba.com/2009/08/02/the-artful-amoeba/ http://theartfulamoeba.com/2009/08/02/the-artful-amoeba/#respond Sun, 02 Aug 2009 14:40:29 +0000 http://frazer.northerncoloradogrotto.com/?p=924 Oh, those wily amoebae. I think we’ve all had days like this at the office. Some sensitive viewers may find this disturbing, although no more disturbing, I suppose, than watching a gazelle get chased down by a cheetah on the Discovery Channel.

The poor little guy who gets it in this video is a little ciliate flagellate(single-celled organism with a long propeller-like propulsive tail) named Chilomonas, according to Psi Wavefunction (thanks Psi!). This little drama is one example of the billions of such daily struggles that go on every day in the soil and water all around you. With our daily lives so full, it’s easy to forget.

This process of eating by engulfment is called “endocytosis” by biologists, which is a fancy term for “into the cell”. Specifically, this is “phagocytosis”, or cellular eating. Many cells can also perform pinocytosis, or cellular drinking, where cells can ingest small bubbles of water. Plasmodial slime molds (oft mentioned and beloved at this blog) start out as single amoebae like this, doing pretty much this the exact same thing in the soil. When they fuse to form a plasmodium, they’re feeding the same way — just at 5 Jillion X.

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