Sunday, December 4, 2011

Cells

    Cells are the basic functional units in organisms. There are multicellular organisms, organisms who contain many cells. There are also unicellular organisms, organisms contained only one cell. An example of a multicellular organism is a human. An example of a unicellular organism is Amoeba.
   There are two types of cells: prokaryotic and eukaryotic. Prokaryotic cells are more smaller than eukaryotic cells and lacking of a nucleus and other organelles of eukaryotes. There are two types of prokaryotes that share similar structures: bacteria and archaea. Eukaryotic cells are way larger and complex than prokaryotic cells. A big difference between them is that eukaryotic cells contain membrane-bound compartments. Examples of complex organisms that are eukaryotes are animals, plants and fungi. The cell divison is different from prokaryotes since prokaryotes don't contain a nucleus. Cells are the building blocks of life.

No comments:

Post a Comment