Tuesday, September 7, 2010


Cells, the basic unit of life (living things), form the organisms unicellular and multicellular (1, 2). It was discovered by Robert Hooke (3, 4). All cells (prokaryotes and eukaryotes) have certain general life characteristics such as: metabolism, environmental adaptation, homeostasis, growth and development, reproduction and evolution (5, 6). The cells have many structural similarities, even if they belong to different organisms (monera, protista, plantae, fungi and animalia), so a general cell structure can be described (7). In term of molecular composition, a cell is composed of inorganic (water and inorganic ions) and organic (macromolecules and small organic molecules) molecules (8). Finally, there are several theories about the origin of prokaryotic and eukaryotic cells (9).

For bibliography and more information click on the numbers and words.

Microscopic observations: A, B

Plants and recombinant proteins

Loreen - Euphoria
Gotye - Somebody That I Used to Know
Adele - Set Fire To The Rain
Blind Guardian - Skalds and Shadows

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