Saturday, February 5, 2011

Amoebas, Parameciums, Euglenas... OH MY!

Microscopic Movement:

PROTISTS are unicellular organisms that are very tiny and hard to see with the naked eye.

Unlike humans, protists cannot stand on two legs and walk to the grocery store or drive a car to get their food. They have to find other ways to MOVE.

An AMOEBA is a type of protist that moves with "false feet" called PSEUDOPODS. Pseudopods extend from the body of an amoeba and grab the area it is moving towards...

Ooooooo... slimy looking!


A PARAMECIUM is another type of protist who has hair-like structures covering their body. These hair-like structures are called CILIA. Cilia move really REALLY fast helping the paramecium to swim. Here is a paramecium moving under a microscope:



EUGLENA is another type of protist... these little organisms have chloroplasts which allow them to do PHOTOSYNTHESIS. Euglena move with a tail called a FLAGELLA that whips back and forth, propelling the euglena to move. Take a look: